Take a look at Line 23 where you declare the int variable vacation. This variable is declared within the body of a conditional statement, which means its lifespan is confined to that conditional...

nomemory means compile the classes then run TestCircle. You cannot run Circle directly as it has no main method. main is the entry point for you program. As nomemory said, don't skip the basics....

You can create an ImageIcon and display it as the content of a JLabel. Then put the JLabel in the content pane of your JFrame. Look here:

Tutorial...

I just wanted to demonstrate a quick point regarding Constructors & inheritance.
Look at these two classes and think about what you might expect to see after the main method has run.
Notice that...

theo19, for a start you have confused the names on lines 22 to 24, you have written:


JPanel row2pane1 = new JPanel();
JPanel row3pane1 = new JPanel();
JPanel row4pane1 = new JPanel();
...

Ok the problem there is that you have not initialized the variable MenuBar before you call the method buildMenus() on it, therefore you get a null pointer exception. You need to initialize MenuBar...

Peter_budo you beat me to it! :) Kahaj, what you could do is :

declare and initialize MenuBar as a class field, instead of a local variable in method buildMenus() :

JMenuBar MenuBar;

you can...

Hi B89Smith, you can add the -deprecation option to the java command, as per the message, and recompile:



You are using a part of the API that is now obsolete. The messages from the compile...

Hi runee1000, welcome to the forums. Please could you use code tags for code, it just makes it much easier to read.


import java.util.*;
/**
* AWT Sample application
*
* @author
* @version...

also ensure your firewall is set to allow connections on port 8080