import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

public class LabelExample extends Frame implements ActionListener{

JTextField tf; JLabel l; JButton b;

LabelExample(){

tf=new JTextField("Hello");

tf.setBounds(50,50, 150,20);

l=new JLabel();

l.setBounds(50,100, 250,20);

b=new JButton("Find IP");

b.setBounds(50,150,95,30);

b.addActionListener(this);

add(b);

add(tf);

add(l);

setSize(400,400);

setLayout(null);

setVisible(true);

}

public void actionPerformed(ActionEvent e) {

try{

String host=tf.getText();

String ip=java.net.InetAddress.getByName(host).getHostAddress();

l.setText("IP of "+ host +" is: "+ip);

}catch(Exception ex){System.out.println(ex);}

}

public static void main(String[] args) {

new LabelExample();

} }