/*Assignment 3
 
applet that displays two Labels and two 
Text Fiels to ask the user to enter two intergers,
and then display the sum of the two intergers in the 
applet window

William Burdette
July 23, 1997  */

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

public class Addition extends Applet {
	Label valuePrompt1;		// prompt user to enter first interger
	TextField value1;		// input first interger here
	Label valuePrompt2;		// prompt user to enter second interger
	TextField value2;		// input second interger here
	int num1, num2, sum;	// store input values and sum of intergers
		
	/* set up GUI componets
	   initialize varibles */

	public void init()
	{
		g.drawString ( "This applet  will add two intergers.", 30, 30)

		valuePropmt1 = new Label 
		    ("Click on this box and type in interger" );
		value1 = new TextFeild ( 10 );
		valuePrompt2 = new Label
			("Then click on this box, type in an interger and press`ENTER' ");
		value2 = new TextField (10);
		add (valuePrompt1);	// put prompt 1 on applet
		add (value1);		// put value 1 on applet
		add (prompt2);		// put prompt 2 on applet
		add (value2);		// put value 2 on applet
		sum = 0;			// set sum to 0
	}

	// display results
	public void paint (Graphic g)
	{
		g.drawstring ("The sum of the intergers is :", 70,75);
		sum = num1 + num2;						// add intergers
		showStatus ( Interger.toString (sum));	//show result
	}

	// ?hmmm something fishy here canšt figure it out?
   public boolean action( Event e, Object o )
	 {
		if (event.target == value2) {
			num1 = Interger.parseInt ( value1.getText () );
			num2 = Interger.parseInt ( value2.getText () );
			repaint();
		}

		return true;	// indicates user's action was proccesed
	}
}