Problem running Java

stroodle01

Hi there!

I am currently at university studying computing and at present learning how to program in Java. I am learning how to generate graphics using the 'Animax' console. I am using Textpad to edit, compile and run the code but its running the code that is proving to be impossible at the moment.
I have downloaded the latest JDK from the JAVA SUN website along with the Animax package. I have tried to compile a simple output program ("Hello World") which is syntacticly correct as it compile with no error message, but when i run the program the command line window consists of the message:

Exception in thread "main" java.lang.NoClassDefFoundError: Demo
Press any key to continue . . .

Insted of:

Hello World
Press any key to continue . . .

I would be very grateful if someone could help me to come up with a solution so i can proceed with my work.
Thanks, Stroodle

spinal007

here's what you need matey:

Code: Select all

/** 
 * The HelloWorldApp class implements an application that
 * simply prints "Hello World!" to standard output.
 */
class HelloWorldApp {
    public static void main(String[] args) {
        System.out.println("Hello World!"); // Display the string.
    }
}

But I can tell the most common mistakes are:

- improper case:
public static void Main(String[] args) {
...instead of...
public static void main(String[] args) {

- missing line delimiters:
System.out.println("Hello World!")
...instead of...
System.out.println("Hello World!");
Maybe that's what you did wrong...

__________________
Diego - SEO Consultant London (My Blog | Fight Me)
jQuery: Star Rating - Multiple File Upload - FCKEditor/Codepress
Before we work on artificial intelligence why don't we do something about natural stupidity?

stroodle01

The code is as follows:


class Demo001
{
public static void main(String[] args)
{
System.out.println("Blimey!!");
System.out.println("It Works!!");
}
}

The code seems fine to me, perhaps you may be able to spot an error?? the class path may be the problem. I have named the class correctly. I have a feeling a program may be interfering with the JAVA program path, which may involve messign arong with the registry settings (which i have no idea about!). Although saying this it has no problem compiling, the compiler JAVAC is located in the same folder as the JAVA program, although the program will still not run wich to me seems very wierd!!