File Won't run

[gameaddict123]

This is odd. I compiled HelloWorld.java successfully using javac HelloWorld.java at cmd. Then i typed in java HelloWorld and it says "Could not find main class HelloWorld. Program will exit". What is wrong? Here is the source code:
class HelloWorld{
public static void main(String[] args){
System.out.println("Hello World");
}
}

[JosAH]

This is odd. I compiled HelloWorld.java successfully using javac HelloWorld.java at cmd. Then i typed in java HelloWorld and it says "Could not find main class HelloWorld. Program will exit". What is wrong?

What did you type exactly when you tried to run your compiled file? Also, are you sure there's a file HelloWorld.class?

kind regards,

Jos