CODEWITHSUNDEEP
javaswinguser-interfacejbutton
ThomasMcDonald
ThomasMcDonald

Reputation: 323

Java jbutton not visible

I have created a jbutton in the correct way (I'm assuming), and have added it to the jFrame, is there any reason why I am unable to see my button when I run it?

import javax.swing.*;
import java.awt.*;

public class MainMenu{
    public JFrame mainframe;
    public JButton newGameBTN;
    public JLabel title;

    public MainMenu(){
        mainframe = new JFrame("Java Assignment");
        mainframe.setSize(220 ,480);
        mainframe.setLocationRelativeTo(null);
        mainframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        newGameBTN = new JButton("New Game");
        title = new JLabel ( "Java Assignment",SwingConstants.CENTER);
        mainframe.getContentPane().add(newGameBTN);
        mainframe.getContentPane().add(title);

        mainframe.setVisible(true);  
    }
}

Upvotes: 1

Views: 732

Answers (1)

camickr
camickr

Reputation: 324157

mainframe.getContentPane().add(newGameBTN);
mainframe.getContentPane().add(title);

The default layout for the content pane of a JFrame is a BorderLayout. When you don't specify a constraint the component is added to the "CENTER". But you can only have a single component in the center so the second component added replaces the first component. Try:

mainframe.getContentPane().add(newGameBTN, BorderLayout.NORTH);

Upvotes: 3

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