Refactor

java/final-project/CovidDatabase.java

@@ -30,8 +30,7 @@ public class CovidDatabase {
     }
 
     public ArrayList <CovidEntry> safeToOpen(String st){
-	ArrayList<CovidEntry> result = null;
+	ArrayList<CovidEntry> result = new ArrayList<CovidEntry>();
-	ArrayList<CovidEntry> temp = new ArrayList<CovidEntry>();
 	int match = 0;
 	int previousDailyInfections = -1;
 
@@ -41,26 +40,21 @@ public class CovidDatabase {
 			previousDailyInfections = c.getDailyInfections();
 			match += 1;
 		}
-
 		else if (c.getDailyInfections() < previousDailyInfections) {
 		    match += 1;
 		} else {
 		    match = 1;
-		    temp.clear();
+		    result.clear();
 		}
-		temp.add(c);
+		result.add(c);
 		
 		previousDailyInfections = c.getDailyInfections();
 	    }		
 	    if (match == SAFE) {
-		result = temp;
-		break;
-	    }
-	}
-
 		return result;
-	
+	    }
-
+	}
+	return null;
     }
 
     public ArrayList <CovidEntry>