For some reason, my JPanel is not showing up

Question

This is my code

import javax.swing.*;
import java.awt.*;
import java.awt.Graphics;
public class Test extends JFrame{
    private JButton by;
    private JButton bn;
    JLabel startQuestion;

    public Test() {
        JPanel p = new JPanel();
        by = new JButton("Yes");
        bn = new JButton("No");
        startQuestion = new JLabel("Would you like to start?");
        p.setLayout(null);
        by.setBounds(180, 250, 70, 45);
        bn.setBounds(250, 250, 70, 45);
        startQuestion.setLocation(195, 240);
        p.add(by);
        p.add(bn);
        add(startQuestion);
        add(p);
        setDefaultCloseOperation(3);
        setSize(500, 500);
        setVisible(true);
    }

    public static void main(String...args) {
        new Test();
    }
}

There are no syntax errors, however my Jlabel is not added (the buttons work fine). I do not want to change the layout from null, as I want to be able to define the positions of the buttons and labels. Does anyone know why this isn't working?

You have not run your code on the EDT. You must read the [tutorial on writing Swing applications](https://docs.oracle.com/javase/tutorial/uiswing/start/compile.html) and specifically understand what the EDT is and why it is imperative to execute all GUI code on it. — Boris the Spider, Oct 12 '15 at 14:54

score 2 · Answer 1 · edited May 23 '17 at 11:58

2

This question is similar to JLabel won't show with JPanel.setLayout(null). Why?

To answer it here, add a line like this:

    startQuestion.setBounds(150, 150, 200, 20);

edited May 23 '17 at 11:58

Community

1
1

answered Oct 12 '15 at 15:04

OliCoder

1,370
10
25

Sincere apologies for the repetition. I did not realize that the null layout had a default zero size. Thanks a lot! – Rahul Mukherji Oct 12 '15 at 15:09
1

And I would add as stated in the link you provided, **don't** use `null` layout, instead use a [Layout Manager](http://docs.oracle.com/javase/tutorial/uiswing/layout/visual.html) – Frakcool Oct 12 '15 at 15:38

Kumaresan Perumal · Answer 2 · 2015-10-12T16:12:18.270

0

import javax.swing.*;
import java.awt.*;
import java.awt.Graphics;
public class Test extends JFrame{
    private JButton by;
    private JButton bn;
    JLabel startQuestion;
        public Test() {
        JPanel p = new JPanel();
        by = new JButton("Yes");
        bn = new JButton("No");
        startQuestion = new JLabel("Would you like to start?");
        //p.setLayout(null);
        by.setBounds(180, 250, 70, 45);
        bn.setBounds(250, 250, 70, 45);
        startQuestion.setLocation(195, 240);
        p.add(by);
        p.add(bn);
        add(startQuestion);
        add(p);
        setDefaultCloseOperation(3);
        setSize(500, 500);
        setVisible(true);
        }
        public static void main(String...args) {
        new Test();
    }
}

Note:

you need to comment setlayout(null);

edited Oct 12 '15 at 16:12

answered Oct 12 '15 at 15:13

Kumaresan Perumal

1,926
2
29
35

I understand where you're coming from, but if I don't use setlayout(null); I won't be able to position the buttons. – Rahul Mukherji Oct 14 '15 at 16:09
You go for some other layouts ,visit the following link.https://docs.oracle.com/javase/tutorial/uiswing/layout/visual.html – Kumaresan Perumal Oct 15 '15 at 05:37

For some reason, my JPanel is not showing up

2 Answers2

Note: