Show Icon on The Button

With the help of java swing, you can add images, icons in the application to make your GUI application interface more attractive. With the help of this example, you can learn how to add image on the button or other control. This example expain you add image file. The code is given below :

import javax.swing.*;
import java.awt.*;

public class IconButton{
public static void main(String[] args){
JFrame frame = new JFrame("Swing Icon Example");
JButton button = new JButton("My Button");
Icon imgicon = new ImageIcon("smiley_icon.gif");
JPanel panel = new JPanel();
button.setIcon(imgicon);
panel.add(button);
frame.add(panel, BorderLayout.NORTH);
frame.setSize(380, 380);
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}

Swing Input Dialog Box

Input dialog box in java is the good example of user input example in GUI environment. A user can input value at run time in small window. The input box also contains "OK" and "Cancel" button. The code below is the example to create an input box where user enter either text or numeric value at run time :

import javax.swing.*;
import java.awt.event.*;

public class ShowInputDialog{
public static void main(String[] args){
JFrame frame = new JFrame("Input Dialog Box Example");
JButton button = new JButton("Click for Input Dialog Box");
button.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent ae){
String txt = JOptionPane.showInputDialog(null, "Enter Your Text : ",
"Input Box", 1);
if(txt != null)
JOptionPane.showMessageDialog(null, "The text you have entered : " + txt,
"Input Box", 1);
else
JOptionPane.showMessageDialog(null, "You clicked on cancel button.",
"Input Box", 1);
}
});
JPanel panel = new JPanel();
panel.add(button);
frame.add(panel);
frame.setSize(350, 350);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
}