//Applet ButtonIn.java
//Prepared by (your name) on (current data) at (WELTEC)
import java.awt.*;
import java.applet.*;
public class ButtonIn extends Applet
{
private int dig;   //This variable represents the calculator key just clicked on
private int total; //This variable shows what appears on the calculator's screen
public void start()//This method sets the initial displays
	{
	total=0;        //This sets the initial screen display before keys are pressed
	digit_in(dig);
	}
public void digit_in(int digit_clicked) //This method accepts the most recent click 
	{
	dig = digit_clicked;
	total = total*10 + dig;
	repaint();
	}
public void paint(Graphics g) //This method displays what appears on the screem
	{
	g.setFont(new Font("TimesRoman",Font.BOLD+Font.ITALIC,48));
	g.setColor(Color.red);
	g.drawString("Digit pressed = " + dig, 40, 80);
	g.drawString("Total = " + total, 40, 140);
	}
}