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

public class Summa1 extends Applet implements ActionListener{

TextField a=new TextField(2),
	b=new TextField(2),
	c=new TextField(2),
	d=new TextField(2),
	s=new TextField(10);
Button b1=new Button("  =  ");
Label p1=new Label("/",Label.CENTER),
	p2=new Label("+",Label.CENTER),
	p3=new Label("/",Label.CENTER);

public void init(){
	add(a);add(p1);add(b);add(p2);
	add(c);add(p3);add(d);add(b1);
	add(s);
	b1.addActionListener(this);
}
public void actionPerformed(ActionEvent e){
	s.setText(num(a)*num(d)+num(c)*num(b)+" / "+num(b)*num(d));
	Graphics g=getGraphics();
	g.setColor(Color.white);
	g.fillRect(40, 40, 200, 50);
	g.setColor(Color.black);
		if(num(b)==0 || num(d)==0){g.drawString("Division by ZERO !!!",50 ,70);}
		else{

	g.drawString(num(a)+"", 50, 60);
	g.drawString(num(b)+"", 50, 80);
	g.drawString(num(c)+"", 90, 60);
	g.drawString(num(d)+"", 90, 80);
//	g.drawString(num(a)*num(d)+num(c)*num(b)+"", 130, 60);
//	g.drawString(num(b)*num(d)+"", 130, 80);
	g.drawString(num(a)+"*"+num(d)+"+"+num(c)+"*"+num(b), 130, 60);
	g.drawString(num(b)+"*"+num(d), 130, 80);
	g.drawLine(50, 65, 70, 65);
	g.drawLine(90, 65, 110, 65);
	g.drawLine(130, 65, 190, 65);
	g.drawString("+", 76, 70);
	g.drawString("=", 116, 70);
		}
}
int num(TextField tf){
return Integer.parseInt(tf.getText().trim());
}
}