import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;

public class Lab14 extends Frame implements ActionListener {
	TextField rate = new TextField(10), hrs = new TextField(10), output = new TextField(15);
	double pay;
	boolean started = false;
	
	public Lab14(){
		super("Lab 14");
		setSize(300,200);
		Panel p1 = new Panel();
		p1.add(new Label("Enter hourly rate: "));
		p1.add(rate);
		p1.add(new Label("Enter hours worked: "));
		p1.add(hrs);
		p1.add(output);
		add(p1);
		rate.addActionListener(this);
		hrs.addActionListener(this);
		setVisible(true);
		addWindowListener(new Terminate());
	} // End constructor
		
	public void paint(Graphics g){
		if (started) {
			try{
			pay = ((new Double(rate.getText()).doubleValue()) * (new Double(hrs.getText()).doubleValue()));
			}
			catch (Exception e){};
			output.setText("Pay is $" + pay);
		} // End IF
		else started = true;
	} // Ends Paint

	public void actionPerformed(ActionEvent e){
		if (e.getSource() == rate){
			hrs.requestFocus();
			repaint();
		}
		else {rate.requestFocus(); repaint();}
	} // End ActionPerformed

	public static void main(String[] args){
		new Lab14();
	} // End of main
} // Ends Class



class Terminate extends WindowAdapter {
	public void windowClosing(WindowEvent e){
		System.exit(0);
	}
}