Exception in thread "main" java.lang.NoClassDefFoundError: dice (wrong name: Dice)

[Raine RaineAndrews]

First of all, hello! I'm currently on a path of java enlightenment. I am attempting to learn Java by doing, which I feel fits my learning style excellently!

The only problem is I get lots of errors and warning, and while most I can fix, some I cannot figure out. I am currently working on a piece of code that will allow me to see the result of 2 dice being thrown, both their single values and their summation.

/* This program is intended to simulate 2
	dice being thrown.  Each value is
	output and summed */

public class Dice {

	public static void main(String[] args) {
	
		double dice1, dice2; //dice variable
		double roll; //this is the sum of dice

		dice1 = (Math.random()*6) + 1;
		dice2 = (Math.random()*6) + 1;
		roll = dice1 + dice2;
	
		System.out.println("The roll for the first die is: " + dice1);
		System.out.println("The roll for the second die is: " + dice2);
		System.out.println("The sum of the dice is: " + roll);
	} // end of main
} // end of Dice

when I compile this, I get not warnings or errors, so I'm assuming the syntax is right. However, when I attempt to run this program (through cmd) I get this doozy:

Exception in thread "main" java.lang.NoClassDefFoundError: dice (wrong name: Dice)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.define.ClassCond(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassloader.defineClass(Unknown Source)
at java.net.URLClassLoader.defineClass(Unknown Source)

...it goes on for about 7 more lines of stuff I don't understand and then ends with

Could not find the main class: dice. Program will exit.

So, I searched the forums found something with a similar error, but their problem was not having a main() function. I'm fairly certain the "public static void main(String[] args)" is my main () function. The error itself led me to believe I had forgotten to define this program as a Class, but its clearly labeled as Dice.

Any help you could give to point me in the right path is much appreciated! I am very new with java, so please bear through my ignorance

[Mike Simmons]

How are you running the program? My guess is you're typing "java dice" when you should be typing "java Dice".

[Raine RaineAndrews]

Thank you very much for pointing out my amateur move! It works perfectly now (besides the whole decimal thing, but I think changing the variables to int, instead of double will fix that!)