Java Programming JFrame to create a GUI

Java Programming JFrame to create a GUI

In java programming, we can also use JFrame to create a Graphical user interface (GUI) using JFrame class.

Need to create a instance for JFrame class to have GUI in java code.

JFrame frame = new JFrame("JFrame Title")

Example Java Program to Create a Frame (GUI)

//Testing Frame using JFrame class in java code
//importing java swing package for GUI

import javax.swing.*;

public class FrameTest {
	public static void main(String[] args){
                 // Creating a instance 'frame' for java JFrame class
                 // and Frame title is 'JFrame Test Java Code'.
		JFrame frame = new JFrame("JFrame Test Java Code");
                //Setting Frame size width 500 and height 200
		frame.setSize(500,200);
                // Setting Frame visibility
		frame.setVisible(true);
                // Adding close operation as default in Frame.
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		
	}
}
Output:
JFrame Test Java Code

Once executing this java program, Empty Frame will be popped up as above and closes if we click close button in the frame title.

Java Programming creates a GUI inheriting JFrame class

Below Java code is used to create JFrame GUI inheriting the JFrame class.

//Testing Frame using JFrame class in java code
//importing java swing package for GUI

import javax.swing.*;

public class FrameTest extends JFrame {

	public FrameTest (){
                // Setting Title
		setTitle("JFrame Test Java Code");
        }

	public static void main(String[] args){
                 // Creating a instance 'frame' for java JFrame class
                 // and Frame title is 'JFrame Test Java Code'.
		FrameTest frame = new FrameTest ();
                //Setting Frame size width 500 and height 200
		frame.setSize(500,200);
                // Setting Frame visibility
		frame.setVisible(true);
                // Adding close operation as default in Frame.
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}
}

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