Write a program that creates a user interface to perform integer divisions. The user enters two numbers in the text fields, Num1 and Num2. The division of Num1 and Num2 is displayed in the Result field when the Divide button is clicked. If Num1 or Num2 were not an integer, the program would throw a NumberFormatException. If Num2 were Zero, the program would throw an Arithmetic Exception Display the exception in a message dialog box.
Program Code:
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
public class Add1 extends Applet implements ActionListener
{
String msg;
TextField num1, num2, res;
Label l1, l2, l3;
Button div;
public void init()
{
l1 = new Label("Number 1");
l2 = new Label("Number 2");
l3 = new Label("result");
num1 = new TextField(10);
num2 = new TextField(10);
res = new TextField(30);
div = new Button("DIV");
div.addActionListener(this);
add(l1);
add(num1);
add(l2);
add(num2);
add(l3);
add(res);
add(div);
}
public void actionPerformed(ActionEvent ae)
{
String arg = ae.getActionCommand();
if (arg.equals("DIV"))
{
String s1 = num1.getText();
String s2 = num2.getText();
int num1 = Integer.parseInt(s1);
int num2 = Integer.parseInt(s2);
if (num2 == 0)
{
msg = "Arithemetic Exception ";
repaint();
}
else if ((num1 < 0) || (num2 < 0))
{
msg = "NumberFormat Exception";
repaint();
}
else
{
int num3 = num1 / num2;
msg = String.valueOf(num3);
}
res.setText(msg);
}
}
public void paint(Graphics g)
{
//g.drawString(msg, 30, 70);
}
}
APPLET.HTML
<html>
<head>
</head>
<body>
/*<applet code="Add1.class"width=350 height=300>
</applet>*/
</body>
</html>
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