Thread: (Beginner) Need some help with display

Hello I am new to the forum so first I would like to say hello!

I am a beginner and just started learning to use Java 2 days ago. I am having an issue with getting a display box to show up. I am working from a tutorial at the moment and I am using the Eclipse IDE however when I try to compile and run I receive an error that states

Severity and DescriptionPath Resource Location Creation Time Id
The serializable class Board does not declare a static final serialVersionUID field of type long Uadventure/src/uadventure Board.java line 5 1352751766061 40

Here is the code I am working with:

package uadventure;

import javax.swing.JFrame;

public class Board extends JFrame {

public Board() {
add(new Board());
setTitle("Display");
setDefaultCloseOperation(EXIT_ON_CLOSE);
setSize(1280, 800);
setLocationRelativeTo(null);
setVisible(true);
setResizable(false);
}

public static void main(String[] args) {
new Board();
}
}

Getting a box to display just isn't working. Like I said I am working from a tutorial and I even tried using the tutorial code as well and the same problem arises. I have been doing alot of reading and understand how things work but I seem to struggle getting the basics of a project going once I can get the display working I can then move onto getting things together. Any help with this problem would be greatly appreciated.

Thanks
Justin

It is showing as a warning. After I compile and run it the console gives me these errors.

Exception in thread "main" java.lang.StackOverflowError
at java.util.HashMap.getEntry(Unknown Source)
at java.util.HashMap.get(Unknown Source)
at sun.awt.AppContext.get(Unknown Source)
at com.sun.java.swing.SwingUtilities3.getDelegateRepa intManager(Unknown Source)
at javax.swing.RepaintManager.getDelegate(Unknown Source)
at javax.swing.RepaintManager.addDirtyRegion(Unknown Source)
at javax.swing.JComponent.repaint(Unknown Source)
at java.awt.Component.repaint(Unknown Source)
at javax.swing.JComponent.setBackground(Unknown Source)
at javax.swing.LookAndFeel.installColors(Unknown Source)
at javax.swing.LookAndFeel.installColorsAndFont(Unkno wn Source)
at javax.swing.plaf.basic.BasicPanelUI.installDefault s(Unknown Source)
at javax.swing.plaf.basic.BasicPanelUI.installUI(Unkn own Source)
at javax.swing.JComponent.setUI(Unknown Source)
at javax.swing.JPanel.setUI(Unknown Source)
at javax.swing.JPanel.updateUI(Unknown Source)
at javax.swing.JPanel.<init>(Unknown Source)
at javax.swing.JPanel.<init>(Unknown Source)
at javax.swing.JPanel.<init>(Unknown Source)
at javax.swing.JRootPane.createGlassPane(Unknown Source)
at javax.swing.JRootPane.<init>(Unknown Source)
at javax.swing.JFrame.createRootPane(Unknown Source)
at javax.swing.JFrame.frameInit(Unknown Source)
at javax.swing.JFrame.<init>(Unknown Source)
at uadventure.Board.<init>(Board.java:7)
at uadventure.Board.<init>(Board.java:8)
at uadventure.Board.<init>(Board.java:8)
at uadventure.Board.<init>(Board.java:8)

And uadventure.board repeats many times

Here is an image of eclipse

error.jpg

Ah I see thank you very much I got it working and I can see how it was repeating itself.