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...

here (http://java.sun.com/docs/books/tutorial/uiswing/events/actionlistener.html)

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....

Take a look at line 91:

mbar.add(mnuHelp);

mnuHelp has NOT been initialized, so you will get a Null Pointer Exception. To rectify this, initialize mnuHelp where you initialize the other two...

What is the exact error message? Is it a compilation error? Or a runtime exception you are encountering?

You could use the escape sequence "\n" after you print out the 4th element in the array? Or use just System.out.println(); after the 4th element has been printed.

You have not specified a constructor for class Complex that accepts two doubles as parameters. There are two things you could do:

1- Rename void "setValue" to "public Complex" and give the Complex...

You are welcome, it's often the obvious things that we all miss! Please mark the thread as solved!

On line 15, you are parsing the user input to an integer, and integers do not function with decimals. Parse the input string to a double:

double mileage = Double.parseDouble(mileageInput);

I wrote a paint application quite recently in Java actually, if you are willing to show effort and make a start - then you could come back with specific questions. I, and my peers will no doubt be...

As quuba said, you have declared panelCenter2 but you are still adding the JButtons jn4, jn5 and jn6 to panelCentre1 - which is positioned using BorderLayout.CENTER. Hence why your last three buttons...

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...

You need to add:

notepadFrame.add(MenuBar);

before you set notepadFrame.setVisible(true);. This adds the MenuBar to the Frame.

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...

lol thanks for that Jasimp, silly me! :)

You need to add ItemListener to your combo-box. The sun tutorial is brilliant, look here :

http://http://java.sun.com/docs/books/tutorial/uiswing/components/combobox.html

I hope that helps!
...

Hi kkcaddy, you need to add the .java extension to the javac command in order to compile a java file. I.e:



then you can run the file by using the java command like so:



You can find more...

You need the JVM to execute Jar files. The JVM is part of the JRE (Java Runtime Environment) or JDK (Java Development Kit). Only Java developers will need the JDK though, so if you just want to run a...

Do you mean a tooltip, where text is displayed over a "hovered " button ?

No, it will still generate a random number because you put that in init() too:

Ezzaral, you are a genius. I have been trying to figure this out for Adila for ages!

I am a bit stumped here buddy, when I run it, 9 out ten times the buttons don't show?

The buttons I mean?

Does the grid show when you compile and run it on your machine ?

Well, I presume that at some point in your code your applet is initialised and all the variables are set up. You need your Reset function to re - set these variables to their initial states, without...

Hi there, I think you will need to write your own reset method:

i see the beaut!

lol just googled it. love the "package once deploy everywhere" tag!

not heard of IzPack before Ezzaral will investigate lol

if you are aiming at a windows o/s for your installation try this:



otherwise try this:



hope this helps.

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

I think the general feeling is that we are all here to help each other and interact with each other but a little respect and effort is all we ask

i love this community, but the amount of 'homework hackers' that post here is irritating

hmmm thats not at all vague! you know we like to see some effort before we help!