school/java/old/word-freq/wordFreq.java

import java.util.Scanner;

/*
 * input: 5 hey hi Mark hi mark
 * output:
 * 			hey 1
 * 			hi 2
 * 			Mark 1
 * 			hi 2
 * 			mark 1
 *
 * assume input will always be less than 20 words
 * hint: Use two arrays, one array for strings
 * 						 one array for frequencies
 */


public class wordFreq {

	public static void main(String[] args) {
		Scanner scnr = new Scanner(System.in);

		String[] words = new String[20];
		int[] frequencies = new int[20];

		int numberOfWords = scnr.nextInt();

		for (int i=0; i<numberOfWords; i++){
		   words[i] = scnr.next();
		}

		for (int i=0; i<numberOfWords; i++){
			for (int j=0; j<numberOfWords; j++){
				if (words[i].equals(words[j])){
					frequencies[i]++;
				}
			}
		}
		for (int i=0; i<numberOfWords; i++){
			System.out.println(words[i] + " " + frequencies[i]);
		}
		scnr.close();
	}
}