To Perform Integer Divisions

import java.applet.*;
import java.awt.event.*;
import java.awt.*;
/*<applet code="App8.class" height=600 width=600>
</applet>*/
public class App8 extends Applet implements ActionListener
{
 TextField t1,t2,t3;
 Button b;
 Label l1,l2,l3;
 int res;
 public void init()
 {
  t1=new TextField(5);
  t2=new TextField(5);
  t3=new TextField(15);
  b=new Button("divide");
  l1=new Label("Num1");
  l2=new Label("Num2");
  l3=new Label("Result");
  add(l1);
  add(t1);
  add(l2);
  add(t2);
  add(b);
  add(l3);
  add(t3);
  b.addActionListener(this);
 }
 public void actionPerformed(ActionEvent e)
 {
  try
  {
  int a=Integer.parseInt(t1.getText());
  int b=Integer.parseInt(t2.getText());
  res=a/b;
  t3.setText(""+res);
  }
  catch (NumberFormatException ne)
  {
   t3.setText("Number format exception");
  }
  catch(ArithmeticException ae)
  {
   t3.setText("arithmetic exception");
  }
  
 }
}