Brtdku

I am working on a program for my school to use. It is like match.com, but for a public school. Yes there has been permission from the school to do this.

This is the first time I have ever used swing and I am having an issue with adding my JPanel to my JFrame so that I can see and use the button.

    private void Framing()

    {

    JPanel Panel = new JPanel(); 

    Panel.setLayout(new BorderLayout());

    JFrame Frame = new JFrame("Warning");

    Frame.setUndecorated(true);

    JButton OK = new JButton("EXIT");

    OK.addActionListener((ActionEvent event) -> {System.exit(0);});

    OK.setBounds(100,100,100,100);

    Panel.add(OK, BorderLayout.CENTER);

    Frame.getContentPane().add(Panel, BorderLayout.CENTER);

    Panel.setLocation((Frame.getWidth()-Panel.getWidth())/2,0);

    Frame.setExtendedState(JFrame.MAXIMIZED_BOTH);

    Frame.setLocation(600, 300);

    Frame.setResizable(false);

    Frame.setLayout(null);

    Frame.setVisible(true);

}

What is the fastest way to fix the issue with the panel not even showing up?
Any solutions are welcomed.

Since you are a new Swing programmer, I'll try to explain with below sample code. Here I have taken your code and done few changes. See my comments in the code.

With these changes, now the program works and shows a window with a big button. When user clicks the button program exits.

import javax.swing.*;

import java.awt.BorderLayout;

import java.awt.event.ActionEvent;



public class SwingTest

{

  private void Framing() //Better method name would be "showFrame()"

  {

    JPanel Panel = new JPanel(); //Better variable name would be "panel"

    Panel.setLayout(new BorderLayout());

    JFrame Frame = new JFrame("Warning"); //Better variable name would be "frame"

    Frame.setUndecorated(true);

    JButton OK = new JButton("EXIT"); //Better variable name would be "exitButton"

    OK.addActionListener((ActionEvent event) -> {System.exit(0);});



    //Not necessary. Layout manager will handle this.

    //OK.setBounds(100,100,100,100);



    Panel.add(OK, BorderLayout.CENTER);

    Frame.getContentPane().add(Panel, BorderLayout.CENTER);



    //Not necessary. Layout manager will handle this.

    //Panel.setLocation((Frame.getWidth()-Panel.getWidth())/2,0);



    Frame.setExtendedState(JFrame.MAXIMIZED_BOTH);

    Frame.setLocation(600, 300);

    Frame.setResizable(false);



    //This is the main problem. You should avoid this.

    //Frame.setLayout(null);



    Frame.setVisible(true);

  }



  public static void main(String args)

  {

    new SwingTest().Framing();

  }

}