Update: Whatever

cpp/10.7.1-lab-vending-machine/VendingMachine.cpp

@@ -0,0 +1,28 @@
+#include <iostream>
+#include <string>
+
+#include "VendingMachine.h"
+using namespace std;
+
+
+VendingMachine::VendingMachine() {
+	bottles = 20;
+}
+
+void VendingMachine::Purchase(int amount) {
+	bottles = bottles - amount;
+}
+
+int VendingMachine::GetInventory() {
+	return bottles;
+}
+
+
+void VendingMachine::Restock(int amount) {
+	bottles = bottles + amount;
+}
+
+// set the random number generator seed for testing
+void VendingMachine::Report() {
+	cout << "Inventory: " << bottles << " bottles" << endl;
+}

cpp/10.7.1-lab-vending-machine/VendingMachine.h

@@ -0,0 +1,20 @@
+#ifndef VENDINGMACHINE_H_
+#define VENDINGMACHINE_H_
+
+#include <iostream>
+using namespace std;
+
+class VendingMachine {
+
+    public:
+		VendingMachine();
+		void Purchase(int amount);
+		int GetInventory();
+		void Restock(int amount);
+		void Report();
+
+    private:
+        int bottles;
+};
+
+#endif /* VENDINGMACHINE_H_ */

cpp/10.7.1-lab-vending-machine/main.cpp

@@ -0,0 +1,19 @@
+#include <iostream>
+
+#include "VendingMachine.h"
+using namespace std;
+
+int main() {
+   VendingMachine vendor;
+   int int1;
+   int int2;
+   cin >> int1;
+   cin >> int2;
+   
+   vendor.Purchase(int1);
+   vendor.Restock(int2);
+   vendor.Report();
+   
+   
+	/* Type your code here */
+}

cpp/8.23-lab-swapping-variables/main.cpp

@@ -0,0 +1,36 @@
+/*
+ * Write a program whose input is two integer and whose output is the two
+ * integers swapped
+ * Example
+ * Input:
+ * 3 8
+ * output:
+ * 8 3
+ * Must define and call a function
+ * void SwapValues(int& userVal1, int& userVal2)
+ */
+
+#include <iostream>
+using namespace std;
+
+/* Define your function here */
+
+void SwapValues(int& userVal1, int& userVal2){
+  int temp;
+  temp = userVal1;
+  userVal1 = userVal2;
+  userVal2 = temp;
+
+}
+int main() {
+   /* Type your code here. Your code must call the function.  */
+  int val1;
+  int val2;
+
+  cin >> val1;
+  cin >> val2;
+  SwapValues(val1, val2);
+  cout << val1 << " " << val2 << endl;
+
+   return 0;
+}

cpp/8.8.1-function-pass-by-reference/main.cpp

@@ -0,0 +1,28 @@
+#include <iostream>
+using namespace std;
+
+/* Your solution goes here  */
+/* Note how we put the reference bits in the function declaration
+ * instead of passing &var.
+ */
+
+void CoordTransform(int& xVal, int& yVal, int& xValNew, int& yValNew){
+   
+   xValNew = (xVal + 1) * 2;
+   yValNew = (yVal + 1) * 2;
+}
+
+int main() {
+   int xValNew;
+   int yValNew;
+   int xValUser;
+   int yValUser;
+
+   cin >> xValUser;
+   cin >> yValUser;
+
+   CoordTransform(xValUser, yValUser, xValNew, yValNew);
+   cout << "(" << xValUser << ", " << yValUser << ") becomes (" << xValNew << ", " << yValNew << ")" << endl;
+
+   return 0;
+}

cpp/8.8.1-function-pass-by-reference/main.cpp~

@@ -0,0 +1,25 @@
+#include <iostream>
+using namespace std;
+
+/* Your solution goes here  */
+
+void CoordTransform(int& xVal, int& yVal, int& xValNew, int& yValNew){
+   
+   xValNew = (xVal + 1) * 2;
+   yValNew = (yVal + 1) * 2;
+}
+
+int main() {
+   int xValNew;
+   int yValNew;
+   int xValUser;
+   int yValUser;
+
+   cin >> xValUser;
+   cin >> yValUser;
+
+   CoordTransform(xValUser, yValUser, xValNew, yValNew);
+   cout << "(" << xValUser << ", " << yValUser << ") becomes (" << xValNew << ", " << yValNew << ")" << endl;
+
+   return 0;
+}

cpp/8.9.2-Modify-a-string-arameter/main.cpp

@@ -0,0 +1,25 @@
+#include <iostream>
+#include <string>
+using namespace std;
+
+void MakeSentenceExcited(string& sentenceText) {
+
+   /* Your solution goes here  */
+  //Note that I had to use single quotes.   
+   for (int i =0; i<sentenceText.size();i++){
+    if (sentenceText.at(i) == '.'){
+       sentenceText.at(i) = '!';
+    }
+   }
+
+}
+
+int main() {
+   string testStr;
+
+   getline(cin, testStr);
+   MakeSentenceExcited(testStr);
+   cout << testStr;
+
+   return 0;
+}

cpp/8.9.29-max-min-nums/main.cpp

@@ -0,0 +1,49 @@
+/*
+ * input
+ * 7 15 3
+ * output
+ * largest: 15
+ * smallest: 3
+ *
+ * Use functions:
+ * int LargestNumber(int num1, int num2, int num3)
+ * int SmallestNumber(int num1, int num2, int num3)
+ */
+
+#include <iostream>
+using namespace std;
+
+/* Define your functions here */
+int LargestNumber(int num1, int num2, int num3){
+  int max = num1;
+
+  if (num2 > max){
+    max = num2;}
+  if (num3 > max){
+    max = num3;
+  }
+  return max;
+}
+int SmallestNumber(int num1, int num2, int num3){
+  int min = num1;
+
+  if (num2 < min){
+    min = num2;}
+  if (num3 < min){
+    min = num3;
+  }
+  return min;
+}
+
+int main() {
+   /* Type your code here. Your code must call the functions.  */
+  int num1, num2, num3;
+  cin >> num1;
+  cin >> num2;
+  cin >> num3;
+  
+  cout << "largest: " << LargestNumber(num1, num2, num3) << endl;
+  cout << "smallest: " << SmallestNumber(num1, num2, num3) << endl;              
+
+   return 0;
+}

cpp/8.9.3-swap-vector-ends/main.cpp

@@ -0,0 +1,34 @@
+#include <iostream>
+#include <vector>
+using namespace std;
+
+/* Your solution goes here  */
+
+void SwapVectorEnds(vector<int>& v){
+   int temp;
+   temp = v.at(0);
+   
+   v.at(0) = v.at(v.size()-1);
+   
+   v.at(v.size()-1) = temp;
+}
+
+int main() {
+   vector<int> sortVector(4);
+   unsigned int i;
+   int userNum;
+
+   for (i = 0; i < sortVector.size(); ++i) {
+      cin >> userNum;
+      sortVector.at(i) = userNum;
+   }
+
+   SwapVectorEnds(sortVector);
+
+   for (i = 0; i < sortVector.size(); ++i) {
+      cout << sortVector.at(i) << " ";
+   }
+   cout << endl;
+
+   return 0;
+}

cpp/8.9.33-lab-even-odd-values-in-a-vector/main.cpp

@@ -0,0 +1,80 @@
+/*
+ * read list of ints
+ * output whether list contains all even, all odd, or neither.
+ * input begins with an int indicating the number of ints in the list
+ *
+ * input:
+ * 5 2 4 6 8 10
+ *
+ * output:
+ * all even
+ *
+ * input:
+ * 5 1 -3 5 -7 9
+ *
+ * output:
+ * all odd
+ *
+ * input:
+ * 5 1 2 3 4 5
+ *
+ * output:
+ * not even or odd
+ *
+ * Two functions
+ *
+ * bool IsVectorEven(vector<int> myVec)
+ * bool IsVectorOdd(vector<int> myVec)
+ */
+
+#include <iostream>
+#include <vector>
+using namespace std;
+
+/* Define your function here */
+bool IsVectorEven(vector<int> myVec) {
+  for (int i=0;i<myVec.size();i++){
+    if (myVec.at(i) % 2 != 0){
+      return false;
+    }
+  }
+  return true;
+}
+
+bool IsVectorOdd(vector<int> myVec) {
+  for (int i=0;i<myVec.size();i++){
+    if (myVec.at(i) % 2 == 0){
+      return false;
+    }
+  }
+  return true;
+
+}
+
+
+int main() {
+   /* Type your code here. */
+
+  int length;
+  int input;
+  cin >> length;
+
+  vector<int> listOfNums;
+  
+  for (int i=0;i<length;i++){
+    cin >> input;
+    listOfNums.push_back(input);
+  }
+
+  if (IsVectorEven(listOfNums)){
+      cout << "all even" << endl;
+    }
+  else if (IsVectorOdd(listOfNums)){
+      cout << "all odd" << endl;
+    }
+  else{
+    cout << "not even or odd" << endl;
+  }
+      
+   return 0;
+}

cpp/8.9.33-lab-even-odd-values-in-a-vector/main.cpp~

@@ -0,0 +1,28 @@
+/*
+ * read list of ints
+ * output whether list contains all even, all odd, or neither.
+ * input begins with an int indicating the number of ints in the list
+ *
+ * input:
+ * 5 2 4 6 8 10
+ *
+ * output:
+ * all even
+ *
+ * input:
+ * 5 1 -3 5 -7 9
+ *
+ * output:
+ * all odd
+ *
+ * input:
+ * 5 1 2 3 4 5
+ *
+ * output:
+ * not even or odd
+ *
+ * Two functions
+ *
+ * bool IsVectorEven(vector<int> myVec)
+ * bool IsVectorOdd(vector<int> myVec)
+ */

cpp/9.6-lab-triangle-area-comparison-classes/Triangle.cpp

@@ -0,0 +1,25 @@
+#include "Triangle.h"
+#include <iostream>
+#include <iomanip>
+#include <math.h>
+
+using namespace std;
+
+void Triangle::SetBase(double userBase) {
+   base = userBase;
+}
+
+void Triangle::SetHeight(double userHeight) {
+   height = userHeight;
+}
+
+double Triangle::GetArea() const {
+   return 0.5 * base * height;
+}
+
+void Triangle::PrintInfo() const {
+   cout << fixed << setprecision(2);
+   cout << "Base: " << base << endl;
+   cout << "Height: " << height << endl;
+   cout << "Area: " << round(GetArea() * 100.0f) / 100.0f << endl;
+}

cpp/9.6-lab-triangle-area-comparison-classes/Triangle.h

@@ -0,0 +1,16 @@
+#ifndef TRIANGLEH
+#define TRIANGLEH
+
+class Triangle {
+   private:
+      double base;
+      double height;
+   
+   public:
+      void SetBase(double userBase);
+      void SetHeight(double userHeight);
+      double GetArea() const;
+      void PrintInfo() const;
+};
+
+#endif

cpp/9.6-lab-triangle-area-comparison-classes/main.cpp

@@ -0,0 +1,54 @@
+/*
+Example input:
+3.0 4.0
+4.0 5.0
+
+Example output:
+
+Triangle with larger area:
+Base: 4.00
+Height: 5.00
+Area: 10.00
+*/
+
+#include <iostream>
+#include "Triangle.h"
+using namespace std;
+
+int main(int argc, const char* argv[]) {
+   Triangle triangle1;
+   Triangle triangle2;
+
+   // TODO: Read and set base and height for triangle1 (use SetBase() and SetHeight())
+   string userInput;
+
+   cin >> userInput;
+   triangle1.SetBase(stod(userInput));
+   cin >> userInput;
+   triangle1.SetHeight(stod(userInput));
+   
+      
+   // TODO: Read and set base and height for triangle2 (use SetBase() and SetHeight())
+
+   cin >> userInput;
+   triangle2.SetBase(stod(userInput));
+   cin >> userInput;
+   triangle2.SetHeight(stod(userInput));
+   
+   
+   // TODO: Determine larger triangle (use GetArea())      
+   cout << "Triangle with larger area:" << endl;
+
+   if (triangle1.GetArea() > triangle2.GetArea()){
+     triangle1.PrintInfo();
+   }
+   else{
+     triangle2.PrintInfo();
+   }
+         
+
+   // TODO: Output larger triangle's info (use PrintInfo())
+   
+   
+   return 0;
+}

cpp/9.7-lab-car-value-classes/Car.cpp

@@ -0,0 +1,40 @@
+#include <iostream>
+#include <math.h>
+#include "Car.h"
+using namespace std;
+
+void Car::SetModelYear(int userYear){
+   modelYear = userYear;
+}
+
+int Car::GetModelYear() const {
+   return modelYear;
+}
+
+// TODO: Implement SetPurchasePrice() function
+void Car::SetPurchasePrice(int price){
+  purchasePrice = price;
+}
+
+// TODO: Implement GetPurchasePrice() function
+double Car::GetPurchasePrice(){
+  return purchasePrice;
+}
+
+void Car::CalcCurrentValue(int currentYear) {
+   double depreciationRate = 0.15;
+   int carAge = currentYear - modelYear;
+      
+   // Car depreciation formula
+   currentValue = (int) 
+      round(purchasePrice * pow((1 - depreciationRate), carAge));
+}
+
+// TODO: Implement PrintInfo() function to output modelYear, purchasePrice, and 
+void Car::PrintInfo() {
+  cout << "Car's information:" << endl;
+  cout << "   Model year: " << modelYear << endl;
+  cout << "   Purchase price: " << purchasePrice << endl;
+  cout << "   Current value: " << currentValue << endl;
+}
+// currentValue

cpp/9.7-lab-car-value-classes/Car.cpp~

@@ -0,0 +1,28 @@
+#include <iostream>
+#include <math.h>
+#include "Car.h"
+using namespace std;
+
+void Car::SetModelYear(int userYear){
+   modelYear = userYear;
+}
+
+int Car::GetModelYear() const {
+   return modelYear;
+}
+
+// TODO: Implement SetPurchasePrice() function
+
+// TODO: Implement GetPurchasePrice() function
+
+void Car::CalcCurrentValue(int currentYear) {
+   double depreciationRate = 0.15;
+   int carAge = currentYear - modelYear;
+      
+   // Car depreciation formula
+   currentValue = (int) 
+      round(purchasePrice * pow((1 - depreciationRate), carAge));
+}
+
+// TODO: Implement PrintInfo() function to output modelYear, purchasePrice, and 
+// currentValue

cpp/9.7-lab-car-value-classes/Car.h

@@ -0,0 +1,29 @@
+#ifndef CARH
+#define CARH
+
+class Car {
+private:
+  int modelYear;
+  // TODO: Declare purchasePrice member (int)
+  int purchasePrice;
+  int currentValue;
+
+public:
+  void SetModelYear(int userYear);
+
+  int GetModelYear() const;
+
+  // TODO: Declare SetPurchasePrice() function
+  void SetPurchasePrice(int price);
+
+  // TODO: Declare GetPurchasePrice() function
+  double GetPurchasePrice();
+
+  void CalcCurrentValue(int currentYear);
+
+  // TODO: Define PrintInfo() method to output modelYear, purchasePrice, and
+  // currentValue
+  void PrintInfo();
+};
+
+#endif

cpp/9.7-lab-car-value-classes/Car.h~

@@ -0,0 +1,26 @@
+#ifndef CARH
+#define CARH
+
+class Car {
+   private:
+      int modelYear; 
+      // TODO: Declare purchasePrice member (int)
+      int currentValue;
+   
+   public:
+      void SetModelYear(int userYear);
+
+      int GetModelYear() const;
+   
+      // TODO: Declare SetPurchasePrice() function
+   
+      // TODO: Declare GetPurchasePrice() function
+   
+      void CalcCurrentValue(int currentYear);
+   
+     // TODO: Define PrintInfo() method to output modelYear, purchasePrice, and 
+     // currentValue
+   
+};
+
+#endif

cpp/9.7-lab-car-value-classes/main.cpp

@@ -0,0 +1,40 @@
+/*
+Given main(), complete the Car class (in files Car.h and Car.cpp) with member functions to set and get the purchase price of a car (SetPurchasePrice(), GetPurchasePrice()), and to output the car's information (PrintInfo()).
+
+Ex: If the input is:
+
+2011
+18000
+2018
+
+where 2011 is the car's model year, 18000 is the purchase price, and 2018 is the current year, the output is:
+
+Car's information:
+   Model year: 2011
+   Purchase price: 18000
+   Current value: 5770
+
+Note: printInfo() should use three spaces for indentation.
+*/
+#include <iostream>
+#include "Car.h"
+using namespace std;
+
+int main(int argc, const char* argv[]) {
+   int userYear;
+   int userPrice;
+   int userCurrentYear;
+   Car myCar;
+      
+   cin >> userYear;
+   cin >> userPrice;
+   cin >> userCurrentYear;
+      
+   myCar.SetModelYear(userYear);
+   myCar.SetPurchasePrice(userPrice);
+   myCar.CalcCurrentValue(userCurrentYear);
+      
+   myCar.PrintInfo();
+   
+   return 0;
+}

cpp/9.7-lab-car-value-classes/main.cpp~

@@ -0,0 +1,22 @@
+#include <iostream>
+#include "Car.h"
+using namespace std;
+
+int main(int argc, const char* argv[]) {
+   int userYear;
+   int userPrice;
+   int userCurrentYear;
+   Car myCar;
+      
+   cin >> userYear;
+   cin >> userPrice;
+   cin >> userCurrentYear;
+      
+   myCar.SetModelYear(userYear);
+   myCar.SetPurchasePrice(userPrice);
+   myCar.CalcCurrentValue(userCurrentYear);
+      
+   myCar.PrintInfo();
+   
+   return 0;
+}

cpp/9.8-lab-winning-team-classes/Team.cpp

@@ -0,0 +1,22 @@
+#include "Team.h"
+
+// TODO: Implement mutator functions -
+//       SetTeamName(), SetTeamWins(), SetTeamLosses()
+
+void Team::SetTeamName(std::string name) { teamName = name; }
+void Team::SetTeamWins(int wins) { teamWins = wins; }
+void Team::SetTeamLosses(int losses) { teamLosses = losses;}
+
+
+
+
+// TODO: Implement accessor functions -
+//       GetTeamName(), GetTeamWins(), GetTeamLosses()
+std::string Team::GetTeamName() { return teamName; }
+int Team::GetTeamWins() { return teamWins; }
+int Team::GetTeamLosses() { return teamLosses; }
+
+// TODO: Implement GetWinPercentage()
+
+double Team::GetWinPercentage() { return (double)teamWins / (teamWins + teamLosses); }
+

cpp/9.8-lab-winning-team-classes/Team.cpp~

@@ -0,0 +1,9 @@
+#include "Team.h"
+
+// TODO: Implement mutator functions - 
+//       SetTeamName(), SetTeamWins(), SetTeamLosses()
+   
+// TODO: Implement accessor functions - 
+//       GetTeamName(), GetTeamWins(), GetTeamLosses()
+   
+// TODO: Implement GetWinPercentage()

cpp/9.8-lab-winning-team-classes/Team.h

@@ -0,0 +1,30 @@
+#ifndef TEAMH
+#define TEAMH
+
+#include <string>
+
+class Team {
+   // TODO: Declare private data members - teamName, teamWins, teamLosses
+ private:
+  std::string teamName;
+  int teamWins;
+  int teamLosses;
+
+ public:
+     // TODO: Declare mutator functions - 
+   //       SetTeamName(), SetTeamWins(), SetTeamLosses()
+  void SetTeamName(std::string name);
+  void SetTeamWins(int wins);
+  void SetTeamLosses(int losses);
+   
+   // TODO: Declare accessor functions - 
+   //       GetTeamName(), GetTeamWins(), GetTeamLosses()
+  std::string GetTeamName();
+  int GetTeamWins();
+  int GetTeamLosses();
+   
+   // TODO: Declare GetWinPercentage()
+  double GetWinPercentage();
+};
+
+#endif

cpp/9.8-lab-winning-team-classes/Team.h~

@@ -0,0 +1,18 @@
+#ifndef TEAMH
+#define TEAMH
+
+#include <string>
+
+class Team {
+   // TODO: Declare private data members - teamName, teamWins, teamLosses
+   
+   // TODO: Declare mutator functions - 
+   //       SetTeamName(), SetTeamWins(), SetTeamLosses()
+   
+   // TODO: Declare accessor functions - 
+   //       GetTeamName(), GetTeamWins(), GetTeamLosses()
+   
+   // TODO: Declare GetWinPercentage()
+};
+
+#endif

cpp/9.8-lab-winning-team-classes/main.cpp

@@ -0,0 +1,48 @@
+/*
+Given main(), define the Team class (in files Team.h and Team.cpp). For class member function GetWinPercentage(), the formula is:
+teamWins / (teamWins + teamLosses)
+
+Note: Use casting to prevent integer division.
+
+Ex: If the input is:
+
+Ravens
+13
+3 
+
+where Ravens is the team's name, 13 is number of team wins, and 3 is the number of team losses, the output is:
+
+Congratulations, Team Ravens has a winning average!
+
+If the input is Angels 80 82, the output is:
+
+Team Angels has a losing average.
+
+*/
+#include <iostream>
+#include <string>
+#include "Team.h"
+using namespace std;
+
+int main(int argc, const char* argv[]) {
+   string name;
+   int wins;
+   int losses;
+   Team team;
+
+   cin >> name;
+   cin >> wins;
+   cin >> losses;
+
+   team.SetTeamName(name);
+   team.SetTeamWins(wins);
+   team.SetTeamLosses(losses);
+
+   if (team.GetWinPercentage() >= 0.5) {
+      cout << "Congratulations, Team " << team.GetTeamName() <<
+              " has a winning average!" << endl;
+   }
+   else {
+      cout << "Team " << team.GetTeamName() << " has a losing average." << endl;
+   }
+}

java/old/week8/exception-output-file/mainProgram.java

@@ -0,0 +1,100 @@
+import java.io.PrintWriter;
+import java.util.ArrayList;
+import java.util.Scanner;
+import java.io.FileOutputStream;
+import java.io.FileInputStream;
+import java.io.IOException;
+/*
+ * Same as the input one and the string vs int one, but now writting to a file
+ * instead of the screen.
+*/
+
+public class mainProgram {
+
+	public static  ArrayList<String> readInput(final String fileName)
+			throws IOException{
+
+		FileInputStream fileByteStream = null; // File input stream
+		Scanner scnr = null;  				   // Scanner object
+
+		System.out.println("Opening file " + fileName);
+		fileByteStream = new FileInputStream(fileName);
+		scnr = new Scanner(fileByteStream);
+
+		String s = "";
+		String name;
+		int age;
+
+		ArrayList<String> results = new ArrayList<String>();
+
+		while(true){
+
+			//Get name or exit
+			s = scnr.next();
+
+			if (s.equals("-1")){
+				System.out.println();
+				break;
+			}
+			else{
+				name = s;
+			}
+
+			//Get age
+
+			try{
+				age = scnr.nextInt() +1;
+			}
+			catch(Exception e){
+				System.out.println("Age must be an Integer\n" +
+						           "Setting age to 0 ");
+				age = 0;
+
+			}
+			//Finish line
+			scnr.nextLine();
+
+			//Add name plus new age to arr
+			results.add(name + " " + Integer.toString(age));
+
+			System.out.println();
+		}
+		System.out.println("Closing scanner:");
+		fileByteStream.close();
+		scnr.close();
+		return results;
+	}
+
+	public static void writeArrayListToFile(ArrayList<String> arr,
+											final String fileName)
+			throws IOException{
+		FileOutputStream fileStream = null;
+		PrintWriter file = null;
+
+		fileStream = new FileOutputStream(fileName);
+		file = new PrintWriter(fileStream);
+
+		System.out.println("Writing out results " +
+				           "To " + fileName );
+		for (String S:arr){
+			file.println(S);
+		}
+		file.flush();
+		fileStream.close();
+		file.close();
+	}
+
+	public static void main(String[] args) throws IOException{
+
+	 final String  INPUTFILENAME = "NamesAndAges.txt";
+	 final String  OUTPUTFILENAME = "NamesAndAgesUpdated.txt";
+
+		ArrayList<String> userInputs;
+
+		//Get input
+		userInputs = readInput(INPUTFILENAME);
+
+		//Write to file
+		writeArrayListToFile(userInputs, OUTPUTFILENAME);
+	}
+}

java/old/week8/exceptions-input-file/NamesAndAges.txt

@@ -2,4 +2,4 @@ Lee 18
 Lua 21
 Mary Beth 19
 Stu 33
--2
+-1

java/old/week8/exceptions-input-file/main.java

@@ -1,28 +1,35 @@
-import java.io.PrintWriter;
 import java.util.ArrayList;
 import java.util.Scanner;
-import java.io.FileOutputStream;
 import java.io.FileInputStream;
 import java.io.IOException;
 /*
- * Same as the input one and the string vs int one, but now writting to a file
+ * Same as the lab str vs int, except the input comes from a file
- * instead of the screen.
+ * instead of the keyboard.
+ * Use NamesAndAges.txt for input
 */
 
 public class main {
 
-	public static  ArrayList<String> getInput(Scanner scnr){
+	public static void main(String[] args) throws IOException {
+		FileInputStream fileByteStream = null; // File input stream
+		Scanner inFS = null;  				   // Scanner object
 
 		String s = "";
+		ArrayList<String> userInputs = new ArrayList<String>();
 		String name;
 		int age;
 
-		ArrayList<String> results = new ArrayList<String>();
+		//Get input
+		System.out.println("Opening file NamesAndAges.txt.");
+		fileByteStream = new FileInputStream("NamesAndAges.txt");
+		inFS = new Scanner(fileByteStream);
+
+		System.out.println("Reading in file and processing");
 
 		while(true){
 
 			//Get name or exit
-			s = scnr.next();
+			s = inFS.next();
 
 			if (s.equals("-1")){
 				System.out.println();
@@ -35,7 +42,7 @@ public class main {
 			//Get age
 
 			try{
-				age = scnr.nextInt() +1;
+				age = inFS.nextInt() +1;
 			}
 			catch(Exception e){
 				System.out.println("Age must be an Integer\n" +
@@ -44,51 +51,21 @@ public class main {
 
 			}
 			//Finish line
-			scnr.nextLine();
+			inFS.nextLine();
 
 			//Add name plus new age to arr
-			results.add(name + " " + Integer.toString(age));
+			userInputs.add(name + " " + Integer.toString(age));
 
 			System.out.println();
 		}
-		return results;
-	}
 
-	public static void main(String[] args) throws IOException {
+		System.out.println("Closing scanner and printing out results ");
-		FileInputStream fileByteStream = null; // File input stream
-		Scanner inFS = null;  				   // Scanner object
-
-		ArrayList<String> userInputs = new ArrayList<String>();
-
-		//Get input
-		System.out.println("Opening file NamesAndAges.txt.");
-		fileByteStream = new FileInputStream("NamesAndAges.txt");
-		inFS = new Scanner(fileByteStream);
-
-		System.out.println("Reading in file and processing");
-
-		userInputs = getInput(inFS);
-
-
-		System.out.println("Closing scanner and writing out results " +
-				           "To NamesAndAgesUpdated.txt");
 		fileByteStream.close();
 		inFS.close();
 
-		//Write to file
-
-		FileOutputStream fileStream = null;
-		PrintWriter outFS = null;
-
-		fileStream = new FileOutputStream("NamesAndAgesUpdated.txt");
-		outFS = new PrintWriter(fileStream);
-
 		for (String S:userInputs){
-			outFS.println(S);
+			System.out.println(S);
 		}
-		outFS.flush();
-		fileStream.close();
-		outFS.close();
 	}
 }
 

java/old/week9/VideoAssignment/StockDatabase.java

@@ -0,0 +1,44 @@
+import java.util.ArrayList;
+import java.util.Scanner;
+import java.io.FileInputStream;
+import java.io.IOException;
+
+public class StockDatabase {
+    private ArrayList<StockEntry> database;
+
+    public StockDatabase() {
+        database = new ArrayList<StockEntry>();
+    }
+
+    public ArrayList<StockEntry> getDatabase() {
+        return database;
+    }
+
+    public void readStockData(String filename){
+        FileInputStream fileByteStream = null;
+        Scanner scnr = null;
+        try{
+            //open file & set delimeters
+            fileByteStream = new FileInputStream(filename);
+            scnr = new Scanner(fileByteStream);
+            scnr.useDelimiter("[,\r\n]+");
+            scnr.nextLine();
+            while(scnr.hasNext()){
+                String date = scnr.next();
+                double open = scnr.nextDouble();
+                double high = scnr.nextDouble();
+                double low = scnr.nextDouble();
+                double close = scnr.nextDouble();
+                StockEntry s = new StockEntry(
+                                    date, open,
+                                    high, low, close);
+                database.add(s);
+            }
+            fileByteStream.close();
+        }
+        catch(IOException error1){
+            System.out.println("Error with file " + filename);
+        }
+
+    }
+}

java/old/week9/VideoAssignment/StockDatabaseManager.java

@@ -0,0 +1,9 @@
+public class StockDatabaseManager {
+
+    public static void main (String [] args){
+
+        StockDatabase db = new StockDatabase();
+        db.readStockData("data/stock_data.csv");
+        System.out.println();
+    }
+}

java/old/week9/VideoAssignment/StockEntry.java

@@ -0,0 +1,68 @@
+public class StockEntry {
+    private String date;
+    private double open;
+    private double high;
+    private double low;
+    private double close;
+
+    public StockEntry(String date, double open,
+                      double high, double low,
+                      double close) {
+        this.date = date;
+        this.open = open;
+        this.high = high;
+        this.low = low;
+        this.close = close;
+    }
+
+    @Override
+    public String toString() {
+        return "StockEntry{" +
+                "date='" + date + '\'' +
+                ", open=" + open +
+                ", high=" + high +
+                ", low=" + low +
+                ", close=" + close +
+                '}';
+    }
+
+    public String getDate() {
+        return date;
+    }
+
+    public void setDate(String date) {
+        this.date = date;
+    }
+
+    public double getOpen() {
+        return open;
+    }
+
+    public void setOpen(double open) {
+        this.open = open;
+    }
+
+    public double getHigh() {
+        return high;
+    }
+
+    public void setHigh(double high) {
+        this.high = high;
+    }
+
+    public double getLow() {
+        return low;
+    }
+
+    public void setLow(double low) {
+        this.low = low;
+    }
+
+    public double getClose() {
+        return close;
+    }
+
+    public void setClose(double close) {
+        this.close = close;
+    }
+}

java/old/week9/VideoAssignment/stock_data.csv

@@ -0,0 +1,62 @@
+Date,Open,High,Low,Close
+3/15/21,277.52,283.00,206.00,220.14
+3/12/21,275.00,295.50,262.27,264.50
+3/11/21,241.64,281.50,232.60,260.00
+3/10/21,269.43,348.50,172.00,265.00
+3/9/21,217.71,249.85,208.51,246.90
+3/8/21,154.89,210.87,146.10,194.50
+3/5/21,128.17,151.53,127.50,137.74
+3/4/21,125.00,147.87,115.30,132.35
+3/3/21,122.51,127.75,113.12,124.18
+3/2/21,116.93,133.20,112.20,118.18
+3/1/21,104.54,133.99,99.97,120.40
+2/26/21,117.46,142.90,86.00,101.74
+2/25/21,169.56,184.68,101.00,108.73
+2/24/21,44.70,91.71,44.70,91.71
+2/23/21,44.97,46.23,40.00,44.97
+2/22/21,46.69,48.51,42.40,46.00
+2/19/21,41.28,43.89,38.50,40.59
+2/18/21,48.49,48.87,40.65,40.69
+2/17/21,49.77,51.19,44.56,45.94
+2/16/21,52.66,53.50,49.04,49.51
+2/12/21,50.75,55.24,48.05,52.40
+2/11/21,50.01,55.32,48.22,51.10
+2/10/21,50.77,62.83,46.55,51.20
+2/9/21,56.61,57.00,46.52,50.31
+2/8/21,72.41,72.66,58.02,60.00
+2/5/21,54.04,95.00,51.09,63.77
+2/4/21,91.19,91.50,53.33,53.50
+2/3/21,112.01,113.40,85.25,92.41
+2/2/21,140.76,158.00,74.22,90.00
+2/1/21,316.56,322.00,212.00,225.00
+1/29/21,379.71,413.98,250.00,325.00
+1/28/21,265.00,483.00,112.25,193.60
+1/27/21,354.83,380.00,249.00,347.51
+1/26/21,88.56,150.00,80.20,147.98
+1/25/21,96.73,159.18,61.13,76.79
+1/22/21,42.59,76.76,42.32,65.01
+1/21/21,39.23,44.75,37.00,43.03
+1/20/21,37.37,41.19,36.06,39.12
+1/19/21,41.55,45.52,36.64,39.36
+1/15/21,38.49,40.75,34.01,35.50
+1/14/21,38.09,43.06,33.05,39.91
+1/13/21,20.42,38.65,20.03,31.40
+1/12/21,19.96,20.40,19.32,19.95
+1/11/21,19.41,20.65,19.01,19.94
+1/8/21,18.18,18.30,17.08,17.69
+1/7/21,18.47,19.45,18.02,18.08
+1/6/21,17.34,18.98,17.33,18.36
+1/5/21,17.35,18.08,17.23,17.37
+1/4/21,19.00,19.10,17.15,17.25
+12/31/20,19.25,19.80,18.80,18.84
+12/30/20,19.38,20.00,18.85,19.26
+12/29/20,20.82,21.07,18.56,19.38
+12/28/20,21.31,21.97,20.35,20.99
+12/24/20,21.01,21.48,19.95,20.15
+12/23/20,20.17,22.35,19.13,20.57
+12/22/20,16.22,20.04,16.15,19.46
+12/21/20,15.81,16.35,15.28,15.53
+12/18/20,15.78,16.30,15.18,15.63
+12/17/20,13.96,14.98,13.59,14.83
+12/16/20,13.96,14.31,13.58,13.85
+12/15/20,12.78,14.02,12.48,13.85

java/old/week9/assignment1/ClientDemo.java

@@ -0,0 +1,79 @@
+package edu.grcc;
+
+import java.io.*;
+import java.net.*;
+import java.util.Date;
+
+public class ClientDemo {
+
+    public static void main(String[] args) {
+
+
+        final String serverHost = "localhost";
+
+        Socket socketOfClient = null;
+        BufferedWriter os = null;
+        BufferedReader is = null;
+
+        try {
+
+
+            // Send a request to connect to the server is listening
+            // on machine 'localhost' port 7777.
+            socketOfClient = new Socket(serverHost, 7777);
+
+            // Create output stream at the client (to send data to the server)
+            os = new BufferedWriter(new OutputStreamWriter(socketOfClient.getOutputStream()));
+
+
+            // Input stream at Client (Receive data from the server).
+            is = new BufferedReader(new InputStreamReader(socketOfClient.getInputStream()));
+
+        } catch (UnknownHostException e) {
+            System.err.println("Don't know about host " + serverHost);
+            return;
+        } catch (IOException e) {
+            System.err.println("Couldn't get I/O for the connection to " + serverHost);
+            return;
+        }
+
+        try {
+
+            // Write data to the output stream of the Client Socket.
+            os.write("HELO! now is " + new Date());
+
+            // End of line
+            os.newLine();
+
+            // Flush data.
+            os.flush();
+            os.write("I am Tom Cat");
+            os.newLine();
+            os.flush();
+            os.write("QUIT");
+            os.newLine();
+            os.flush();
+
+
+
+            // Read data sent from the server.
+            // By reading the input stream of the Client Socket.
+            String responseLine;
+            while ((responseLine = is.readLine()) != null) {
+                System.out.println("Server: " + responseLine);
+                if (responseLine.indexOf("OK") != -1) {
+                    break;
+                }
+            }
+
+            os.close();
+            is.close();
+            socketOfClient.close();
+        } catch (UnknownHostException e) {
+            System.err.println("Trying to connect to unknown host: " + e);
+        } catch (IOException e) {
+            System.err.println("IOException:  " + e);
+        }
+    }
+
+}

java/old/week9/assignment1/Main.java

@@ -0,0 +1,24 @@
+package edu.grcc;
+
+import java.io.IOException;
+import java.net.Socket;
+import java.util.Scanner;
+
+public class Main {
+
+    public static void main(String[] args) throws IOException {
+	// write your code here
+        try(Socket s = new Socket("time-a.nist.gov", 13);
+            Scanner in = new Scanner(s.getInputStream(), "UTF-8")){
+
+            while(in.hasNextLine())
+            {
+                String line = in.nextLine();
+                System.out.println(line);
+            }
+        }
+
+
+
+    }
+}

java/old/week9/assignment1/ServerProgram.java

@@ -0,0 +1,99 @@
+package org.o7planning.tutorial.socketthread;
+
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStreamWriter;
+import java.net.ServerSocket;
+import java.net.Socket;
+
+public class ServerProgram {
+
+    public static void main(String args[]) throws IOException {
+
+        ServerSocket listener = null;
+
+        System.out.println("Server is waiting to accept user...");
+        int clientNumber = 0;
+
+        // Try to open a server socket on port 7777
+        // Note that we can't choose a port less than 1023 if we are not
+        // privileged users (root)
+
+        try {
+            listener = new ServerSocket(7777);
+        } catch (IOException e) {
+            System.out.println(e);
+            System.exit(1);
+        }
+
+        try {
+            while (true) {
+                // Accept client connection request
+                // Get new Socket at Server.
+
+                Socket socketOfServer = listener.accept();
+                new ServiceThread(socketOfServer, clientNumber++).start();
+            }
+        } finally {
+            listener.close();
+        }
+
+    }
+
+    private static void log(String message) {
+        System.out.println(message);
+    }
+
+    private static class ServiceThread extends Thread {
+
+        private int clientNumber;
+        private Socket socketOfServer;
+
+        public ServiceThread(Socket socketOfServer, int clientNumber) {
+            this.clientNumber = clientNumber;
+            this.socketOfServer = socketOfServer;
+
+            // Log
+            log("New connection with client# " + this.clientNumber + " at " + socketOfServer);
+        }
+
+        @Override
+        public void run() {
+
+            try {
+
+                // Open input and output streams
+                BufferedReader is = new BufferedReader(new InputStreamReader(socketOfServer.getInputStream()));
+                BufferedWriter os = new BufferedWriter(new OutputStreamWriter(socketOfServer.getOutputStream()));
+
+                while (true) {
+                    // Read data to the server (sent from client).
+                    String line = is.readLine();
+
+                    // Write to socket of Server
+                    // (Send to client)
+                    os.write(">> " + line);
+                    // End of line.
+                    os.newLine();
+                    // Flush data.
+                    os.flush();
+
+
+                    // If users send QUIT (To end conversation).
+                    if (line.equals("QUIT")) {
+                        os.write(">> OK");
+                        os.newLine();
+                        os.flush();
+                        break;
+                    }
+                }
+
+            } catch (IOException e) {
+                System.out.println(e);
+                e.printStackTrace();
+            }
+        }
+    }
+}

java/old/week9/assignment1/SimpleClientDemo.java

@@ -0,0 +1,77 @@
+package edu.grcc;
+
+import java.io.*;
+import java.net.*;
+
+public class SimpleClientDemo {
+
+    public static void main(String[] args) {
+
+        // Server Host
+        final String serverHost = "localhost";
+
+        Socket socketOfClient = null;
+        BufferedWriter os = null;
+        BufferedReader is = null;
+
+        try {
+
+            // Send a request to connect to the server is listening
+            // on machine 'localhost' port 9999.
+            socketOfClient = new Socket(serverHost, 7777);
+
+            // Create output stream at the client (to send data to the server)
+            os = new BufferedWriter(new OutputStreamWriter(socketOfClient.getOutputStream()));
+
+
+            // Input stream at Client (Receive data from the server).
+            is = new BufferedReader(new InputStreamReader(socketOfClient.getInputStream()));
+
+        } catch (UnknownHostException e) {
+            System.err.println("Don't know about host " + serverHost);
+            return;
+        } catch (IOException e) {
+            System.err.println("Couldn't get I/O for the connection to " + serverHost);
+            return;
+        }
+
+        try {
+
+            // Write data to the output stream of the Client Socket.
+            os.write("HELlO");
+
+            // End of line
+            os.newLine();
+
+            // Flush data.
+            os.flush();
+            os.write("I am Tom Cat");
+            os.newLine();
+            os.flush();
+            os.write("QUIT");
+            os.newLine();
+            os.flush();
+
+
+
+            // Read data sent from the server.
+            // By reading the input stream of the Client Socket.
+            String responseLine;
+            while ((responseLine = is.readLine()) != null) {
+                System.out.println("Server: " + responseLine);
+                if (responseLine.indexOf("OK") != -1) {
+                    break;
+                }
+            }
+
+            os.close();
+            is.close();
+            socketOfClient.close();
+        } catch (UnknownHostException e) {
+            System.err.println("Trying to connect to unknown host: " + e);
+        } catch (IOException e) {
+            System.err.println("IOException:  " + e);
+        }
+    }
+
+}

java/old/week9/assignment1/SimpleServerProgram(1).java

@@ -0,0 +1,74 @@
+package edu.grcc;
+
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStreamWriter;
+import java.net.ServerSocket;
+import java.net.Socket;
+
+public class SimpleServerProgram {
+
+    public static void main(String args[]) {
+
+        ServerSocket listener = null;
+        String line;
+        BufferedReader is;
+        BufferedWriter os;
+        Socket socketOfServer = null;
+
+        // Try to open a server socket on port 7777
+        // Note that we can't choose a port less than 1023 if we are not
+        // privileged users (root)
+
+
+        try {
+            listener = new ServerSocket(7777);
+        } catch (IOException e) {
+            System.out.println(e);
+            System.exit(1);
+        }
+
+        try {
+            System.out.println("Server is waiting to accept user...");
+
+            // Accept client connection request
+            // Get new Socket at Server.
+            socketOfServer = listener.accept();
+            System.out.println("Accept a client!");
+
+            // Open input and output streams
+            is = new BufferedReader(new InputStreamReader(socketOfServer.getInputStream()));
+            os = new BufferedWriter(new OutputStreamWriter(socketOfServer.getOutputStream()));
+
+
+            while (true) {
+                // Read data to the server (sent from client).
+                line = is.readLine();
+
+                // Write to socket of Server
+                // (Send to client)
+                os.write(">> " + line);
+                // End of line
+                os.newLine();
+                // Flush data.
+                os.flush();
+
+
+                // If users send QUIT (To end conversation).
+                if (line.equals("QUIT")) {
+                    os.write(">> OK");
+                    os.newLine();
+                    os.flush();
+                    break;
+                }
+            }
+
+        } catch (IOException e) {
+            System.out.println(e);
+            e.printStackTrace();
+        }
+        System.out.println("Sever stopped!");
+    }
+}

java/old/week9/assignment1/calc-radius-circle-client/Client.java

@@ -0,0 +1,75 @@
+import java.io.*;
+import java.net.*;
+
+public class Client {
+	public static void main(String[] args) {
+
+		// Server Host
+
+		final String serverHost = "localhost";
+
+		Socket socketOfClient = null;
+		BufferedWriter os = null;
+		BufferedReader is = null;
+
+		try {
+
+			//Send request to connect on 6666
+			socketOfClient = new Socket(serverHost, 6666);
+
+			// Create ouput stream at client to send out data
+			os = new BufferedWriter(new OutputStreamWriter(socketOfClient.getOutputStream()));
+			is = new BufferedReader(new InputStreamReader(socketOfClient.getInputStream()));
+
+		} catch (UnknownHostException e) {
+			System.err.println("Don't know about host " + serverHost);
+			return;
+		} catch (IOException e) {
+			System.err.println("Couldn't get I/O for the connection to " + serverHost);
+			return;
+		}
+
+		try {
+			// write data to output client socket
+			os.write("10");
+			os.newLine();
+
+			os.write("20");
+			os.newLine();
+
+			os.write("11");
+			os.newLine();
+			
+			os.write("75");
+			os.newLine();
+
+			os.write("QUIT");
+			os.newLine();
+
+			// Flush data.
+
+			os.flush();
+
+			// Read data from server
+			// by reading client input socket
+			String responseLine;
+			while ((responseLine = is.readLine()) != null) {
+				System.out.println("Server: " + responseLine);
+				if (responseLine.indexOf("OK") != -1) {
+					break;
+				}
+			}
+
+			os.close();
+			is.close();
+			socketOfClient.close();
+		} catch (UnknownHostException e) {
+			System.err.println("Trying to connect to unknown host: " + e);
+		} catch (IOException e) {
+			System.err.println("IOException: " + e);
+		}
+	}
+}
+
+	
+    

java/old/week9/assignment1/calc-radius-circle-server/Server.java

@@ -0,0 +1,91 @@
+/*
+Create a Server.
+Server takes in a number from a client
+Calculates area of a circle with this number
+pi r^2
+*/
+
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStreamWriter;
+import java.net.ServerSocket;
+import java.net.Socket;
+
+public class Server {
+    public static void main(String args[]) {
+	ServerSocket listener = null;
+	String line;
+	BufferedReader is;
+	BufferedWriter os;
+	Socket socketOfServer = null;
+
+	double dblRadius = 0;
+	String strRadius = null;
+
+	// Try to open a port
+
+	try {
+	    listener = new ServerSocket(6666);
+	} catch (IOException e) {
+	    System.out.println(e);
+	    System.exit(1);
+	}
+
+	//Try to listen with port
+
+	try {
+	    System.out.println("Server is waiting to accept numbers...");
+
+	    //Accept client requests
+
+	    socketOfServer = listener.accept();
+	    System.out.println("Client Accepted!");
+
+	    is = new BufferedReader
+		(new InputStreamReader
+		 (socketOfServer.getInputStream()));
+	    os = new BufferedWriter
+		(new OutputStreamWriter
+		 (socketOfServer.getOutputStream()));
+
+	    while (true) {
+		// Read data to the server
+		line = is.readLine();
+
+		if (line.equals("QUIT")) {
+		    os.write(">> OK");
+		    os.newLine();
+		    os.flush();
+		    break;
+		}
+
+		try{
+		    dblRadius = Double.parseDouble(line);
+		    dblRadius = Math.pow(dblRadius, 2);
+		    dblRadius = Math.PI * dblRadius;
+		    strRadius = Double.toString(dblRadius);
+			
+		}catch (Exception e){
+		    os.write(">> " + line + " Was not'QUIT' or convertable to Double\n");
+			continue;
+		}
+
+		// Write to socket of Server
+		// send to client
+		os.write(">> area of " + line + " is " + dblRadius);
+		// End of line
+		os.newLine();
+		// Flush data
+		os.flush();
+
+		//exit with quit message
+	    }
+	} catch (IOException e) {
+	    System.out.println(e);
+	    e.printStackTrace();
+	}
+	System.out.println("Server stopped!");
+    }
+}

java/old/week9/assignment1/calc-radius-circle-server/Server.java~

@@ -0,0 +1,17 @@
+/*
+Create a Server.
+Server takes in a number from a client
+Calculates area of a circle with this number
+pi r^2
+*/
+
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.OutputStreamWriter;
+import java.net.ServerSocket;
+import java.net.Socket;
+
+public class Server {
+}

java/old/week9/assignment1/calc-radius-circle-server/server.java~

@@ -0,0 +1,8 @@
+/*
+Create a Server.
+Server takes in a number from a client
+Calculates area of a circle with this number
+pi r^2
+*/
+
+import java.io.BufferedReader;

java/old/week9/assignment1/instructions.txt

@@ -0,0 +1,3 @@
+ 1. Create a Client
+2. Create a Server. 
+3. Your client should be able to send data to the server. The server should receive the data, use it to produce a result, and finally send the result back to the client. The client prints the result on the screen. In this example, the data sent from the client is the radius of a circle, and the result produced by the server is the area of the circle.  

java/week10/Main.java

@@ -0,0 +1,30 @@
+
+interface Animal{
+     public void speak();
+}
+
+class Cat implements Animal{
+     @Override
+     public void speak(){
+          System.out.println("Meow Meow");
+     }
+}
+
+class Dog implements Animal{
+     @Override
+     public void speak(){
+          System.out.println("Woof Woof");
+     }
+}
+
+public class Main{
+     public static void main(String [] args){
+          Animal [] animals = {
+               new Dog(),
+               new Cat()
+          };
+          for(Animal animal : animals){
+               animal.speak();
+          }
+     }
+}

java/week10/assignment/Main.java

@@ -0,0 +1,77 @@
+package edu.grcc;
+
+public class Main {
+	public static void main(String[] args) {
+	// Create tasks
+	Runnable printA = new PrintChar('a', 100);
+	Runnable printB = new PrintChar('b', 100);
+	Runnable print100 = new PrintNum(100);
+
+	//Create threads
+	Thread thread1 = new Thread(printA);
+	Thread thread2 = new Thread(printB);
+	Thread thread3 = new Thread(print100);
+
+	// Start threads
+	thread1.start();
+	thread2.start();
+	thread3.start();
+    }
+}
+
+// The task for printing a specified character in specified times
+
+class PrintChar implements Runnable {
+	private char charToPrint; // the char to print
+	private int times; // Times to repeat
+
+	/** Construct a task with specified character and number of
+	 *  times to print the char
+	 */
+	public PrintChar(char c, int t) {
+		charToPrint = c;
+		times = t;
+	}
+
+	@Override /** Override the run() method to tell the system
+				* what the task to perform
+				*/
+	public void run() {
+		for (int i = 0; i < times; i++) {
+			System.out.print(charToPrint);
+			Thread.yield();
+
+			try {
+			    if (i >= 50) Thread.sleep(100);
+			}
+			catch (InterruptedException ex) {
+			}
+		}
+	}
+}
+
+// The task class for printing number from 1 to n for a given n
+class PrintNum implements Runnable {
+	private int lastNum;
+
+	// Construct a task for printing 1, 2, ... i
+	public PrintNum(int n) {
+		lastNum = n;
+	}
+
+	@Override // Tell the thread how to run
+	public void run() {
+	    Thread thread4 = new Thread(
+					new PrintChar('c', 40));
+		thread4.start();
+	    
+		try {
+		     for (int i = 1; i <= lastNum; i++) {
+			 System.out.print(" " + i);
+			 if (i == 50) thread4.join();
+		     }
+		}
+		catch (InterruptedException ex) {
+		}
+	}
+}  

java/week10/assignment/Main.java~

@@ -0,0 +1,61 @@
+package edu.grcc;
+
+public class Main {
+	public static void main(String[] args) {
+	// Create tasks
+	Runnable printA = new PrintChar('a', 100);
+	Runnable printB = new PrintChar('b', 100);
+	Runnable print100 = new PrintNum(100);
+
+	//Create threads
+	Thread thread1 = new Thread(printA);
+	Thread thread2 = new Thread(printB);
+	Thread thread3 = new Thread(print100);
+
+	// Start threads
+	thread1.start();
+	thread2.start();
+	thread3.start();
+    }
+}
+
+// The task for printing a specified character in specified times
+
+class PrintChar implements Runnable {
+	private char charToPrint; // the char to print
+	private int times; // Times to repeat
+
+	/** Construct a task with specified character and number of
+	 *  times to print the char
+	 */
+	public PrintChar(char c, int t) {
+		charToPrint = c;
+		times = t;
+	}
+
+	@Override /** Override the run() method to tell the system
+				* what the task to perform
+				*/
+	public void run() {
+		for (int i = 0; i < times; i++) {
+			System.out.print(charToPrint);
+		}
+	}
+}
+
+// The task class for printing number from 1 to n for a given n
+class PrintNum implements Runnable {
+	private int lastNum;
+
+	// Construct a task for printing 1, 2, ... i
+	public PrintNum(int n) {
+		lastNum = n;
+	}
+
+	@Override // Tell the thread how to run
+	public void run() {
+		for (int i = 1; i <= lastNum; i++) {
+			System.out.print(" " + i);
+		}
+	}
+}  

java/week10/assignment/finished-assignment/File100.txt

@@ -0,0 +1,100 @@
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+11
+12
+13
+14
+15
+16
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+18
+19
+20
+21
+22
+23
+24
+25
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+27
+28
+29
+30
+31
+32
+33
+34
+35
+36
+37
+38
+39
+40
+41
+42
+43
+44
+45
+46
+47
+48
+49
+50
+51
+52
+53
+54
+55
+56
+57
+58
+59
+60
+61
+62
+63
+64
+65
+66
+67
+68
+69
+70
+71
+72
+73
+74
+75
+76
+77
+78
+79
+80
+81
+82
+83
+84
+85
+86
+87
+88
+89
+90
+91
+92
+93
+94
+95
+96
+97
+98
+99
+100

java/week10/assignment/finished-assignment/FileA.txt

@@ -0,0 +1,100 @@
+a
+a
+a
+a
+a
+a
+a
+a
+a
+a
+a
+a
+a
+a
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+a
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+a
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+a
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+a
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+a
+a
+a
+a
+a
+a
+a
+a
+a
+a
+a
+a
+a
+a
+a

java/week10/assignment/finished-assignment/FileB.txt

@@ -0,0 +1,100 @@
+b
+b
+b
+b
+b
+b
+b
+b
+b
+b
+b
+b
+b
+b
+b
+b
+b
+b
+b
+b
+b
+b
+b
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+b
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+b
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+b
+b
+b
+b
+b
+b
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+b
+b
+b
+b
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+b
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+b
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+b
+b
+b
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+b
+b
+b
+b
+b
+b
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+b
+b
+b
+b
+b
+b
+b
+b
+b
+b
+b
+b
+b
+b
+b
+b

java/week10/assignment/finished-assignment/Main.java

@@ -0,0 +1,102 @@
+package edu.grcc;
+
+import java.util.Scanner;
+import java.io.FileInputStream;
+import java.io.IOException;
+
+public class Main {
+	public static void main(String[] args) {
+	// Create tasks
+	// Only need one task. One that prints current line.
+	Runnable printA = new PrintFile("FileA.txt");
+	Runnable printB = new PrintFile("FileB.txt");
+	Runnable print100 = new PrintFileNumbers("File100.txt");
+
+	//Create threads
+	Thread thread1 = new Thread(printA);
+	Thread thread2 = new Thread(printB);
+	Thread thread3 = new Thread(print100);
+
+	// Start threads
+	thread1.start();
+	thread2.start();
+	thread3.start();
+    }
+}
+
+class PrintFile implements Runnable {
+
+	private String fileToPrint;
+
+	public PrintFile(String s) {
+		fileToPrint = s;
+	}
+
+	@Override /** Override the run() method to tell the system
+				* what the task to perform
+				*/
+	public void run() {
+		FileInputStream fileByteStream = null;
+		Scanner inFS = null;
+
+		String s = "";
+
+		try{
+			fileByteStream = new FileInputStream(fileToPrint);
+			inFS = new Scanner(fileByteStream);
+
+			while (inFS.hasNextLine()){
+
+				s = inFS.nextLine();
+				System.out.print(s);
+				Thread.yield();
+			}
+			inFS.close();
+		}
+		catch(IOException e){
+		}
+	}
+}
+class PrintFileNumbers implements Runnable {
+	private String fileToPrint;
+
+	public PrintFileNumbers(String s){
+		fileToPrint = s;
+	}
+
+	public void run() {
+		FileInputStream fileByteStream = null;
+		Scanner inFS = null;
+
+		String s = "";
+
+		Thread thread4 = new Thread(
+				new PrintFile("FileA.txt"));
+		thread4.start();
+
+		try{
+			fileByteStream = new FileInputStream(fileToPrint);
+			inFS = new Scanner(fileByteStream);
+
+			while (inFS.hasNextLine()){
+
+				s = inFS.nextLine();
+				System.out.print(s);
+
+				try{
+					if (Integer.parseInt(s) >= 35) Thread.sleep(100);
+					if (Integer.parseInt(s) == 50){
+					   System.out.println("\n Joining thread!");
+				   	   thread4.join();
+					}
+				}
+				catch(Exception e){
+				}
+
+			}
+			inFS.close();
+		}
+		catch(IOException e){
+		}
+	}
+}

java/week8/exceptions-input-file/main.java

@@ -1,58 +0,0 @@
-import java.util.ArrayList;
-import java.util.Scanner;
-/*
- * Same as the lab str vs int, except the input comes from a file
- * instead of the keyboard.
- * Use NamesAndAges.txt for input
-*/
-
-public class main {
-
-	public static void main(String[] args) {
-		Scanner scnr = new Scanner(System.in);
-		String s = "";
-		ArrayList<String> userInputs = new ArrayList<String>();
-		String name;
-		int age;
-
-		//Get input
-		while(s != "-1"){
-			System.out.println("Enter a name and age. -1 to exit: ");
-
-			//Get name or exit
-			s = scnr.next();
-
-			if (s.equals("-1")){
-				System.out.println();
-				break;
-			}
-			else{
-				name = s;
-			}
-
-			//Get age
-
-			try{
-				age = scnr.nextInt() +1;
-			}
-			catch(Exception e){
-				System.out.println("Age must be an Integer\n" +
-						           "Setting age to 0 ");
-				age = 0;
-
-			}
-			//Finish line
-			scnr.nextLine();
-
-			//Add name plus new age to arr
-			userInputs.add(name + " " + Integer.toString(age));
-
-			System.out.println();
-		}
-
-		for (String S:userInputs){
-			System.out.println(S);
-		}
-	}
-}
-