import java.awt.*;
import java.awt.event.*;

import awb.*;
/*
 * CompSci 1.___________
 * author: dr
 * date: 9/17/04
 * assignment: __________________
 */
public class Couples extends java.applet.Applet implements ActionListener {
	TextField m1, m2;
	Button b1;
	String folks[] = {"Smith", "Jones", "Smith", "Adams", "Baker", "Jones", "Astor"};
	
	public void init(){
		m1 = new TextField(60);
		m2 = new TextField(60);
		b1 = new Button("Count Them");
		m1.setText("Nested Loop Project");
		add(m1);
		add(b1);
		add(m2);
		b1.addActionListener(this);
	}
	
	public void actionPerformed(ActionEvent event) {
		int n, sz = folks.length;
		Object cause = event.getSource();
		if (cause == b1) { // can't really be anything else
			n = countCouples(folks, sz);
			m2.setText("There are " + n + " couples in " + sz + " names.");
		}
	}
	
	public int countCouples(String[] names, int size){
		int count = 0;
		
		int k = 0;
		while (k < size){
			int j = k + 1;
			while (j < size){
				if (names[k].equals(names[j]))
					count = count + 1;
				j = j + 1;
			}
			k = k + 1;
		}
		
		return count;
	}
}