In Java, the JFrame class is used to create a window for your graphical user interface (GUI), and the JButton class allows you to add clickable buttons to that window. Here’s a simple guide on how to create a button in a JFrame and handle button click events.

1. Creating a Simple JButton

To create a button inside a JFrame, you need to follow these steps:

• Create an instance of JFrame.
• Create an instance of JButton with a label (text).
• Add the button to the JFrame using a layout manager or add() method.
• Set the JFrame visible and configure basic settings like close operation.

Example:

import javax.swing.JButton;
import javax.swing.JFrame;

public class Main {
    public static void main(String[] args) {
        // Create a new JFrame
        JFrame frame = new JFrame("JButton Example");

        // Create a new JButton with a label
        JButton button = new JButton("Click Me!");
        
        // Set JButton size
        button.setBounds(50, 70, 200, 20);
        
        // Set the Layout to null
        frame.setLayout(null);

        // Add the button to the frame
        frame.add(button);

        // Set the size of the frame
        frame.setSize(300, 200);

        // Set the default close operation
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // Make the frame visible
        frame.setVisible(true);
    }
}

In this example:

• A JFrame named frame is created.
• A JButton named button is created with the label “Click Me!”.
• The button is added to the frame using frame.add(button).
• The frame is sized to 300×200 pixels, and the window will close when you click the close button.

Conclusion

Creating a JButton in a JFrame is a straightforward process. First, create the button and add it to the frame. Then, if you want to handle the button click using an ActionListener to trigger actions follow this tutorial.

You can further customize the button’s appearance, functionality, and behavior based on your application’s needs.