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JButton Class

The JButton class which extends AbstractButton class that is used to create a button. JButton supports ActionEvent, that means when a button is clicked, an ActionEvent is generated.

JButton class having three commonly used Constructors, such as:

  1. JButton(): creates a button with no text and icon.
  2. JButton(String str): creates a button with the specified text.
  3. JButton(Icon i): creates a button with the specified icon object.
  4. `

Let’s see an example for displaying an image on the button.

import javax.swing.*; import java.awt.event.*; import java.awt.*; public class JButtonDemo extends JFrame { JButtonDemo() { JButton b1 = new JButton("save"); //Creating a save Button. JButton b2 = new JButton("delete"); //Creating a delete Button. setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setLayout(new FlowLayout()); //setting layout using FlowLayout object setSize(300, 300); //setting size of Jframe add(b1); //adding save button to frame. add(b2); //adding delete button to frame. setVisible(true); } public static void main(String[] args) { new JButtonDemo(); } }



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