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Simple Java Math Question

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Golem

Posted: Feb 3 2007, 11:59 PM

Really short legs
[*]

Group: Members
Posts: 930
Member No.: 1603
Joined: 4-November 05

Status: (0d) [--]

I've been having trouble understanding what to do in my Java class (pun totally intended), as my teacher has been assigning lots of programming homework but has very seldom worked with us in class periods to program things.

Whining aside, if anyone knows Java, I'd appreciate some help here:

This is the Cube.java/Cube.class file:

CODE

public class Cube
{ private int side; //instance variables
public Cube(int s){} //constructor
public int getArea() //instance method
{ return side * side * 6;
}
public int getVolume() //instance method
{ return side * side * side;
}
}

And this is the CubeUser.java/CubeUser.class file:

CODE

public class CubeUser
{
public void main(int argv[])
{ Cube cube1 = new Cube(5);
Cube cube2 = new Cube(6);
Cube cube3 = new Cube(7);
cube1.getArea();
cube1.getVolume();
cube2.getArea();
cube2.getVolume();
cube3.getArea();
cube3.getVolume();
}
}

I get this error:
java.lang.NoSuchMethodError: main
Exception in thread "main"
And I have no clue how to fix it. Am I not defining what the main method is? If I'm not, how would I go around doing that?
I am a beginner in Java, just trying to get a feel for how things work, so I realize this may be a stupid question for some of you. Any help is appreciated!

--------------------

Quoth the raven, "~teehee~"

Quicky	Posted: Feb 4 2007, 12:05 AM
a weed in glaber's garden Group: Members Posts: 12957 Member No.: 7 Joined: 13-October 03 Status: (0d)	you may need to have main methods in both classes -------------------- the only good userbar on earth:

Golem	Posted: Feb 4 2007, 07:18 PM
Really short legs Group: Members Posts: 930 Member No.: 1603 Joined: 4-November 05 Status: (0d)	Hmm, tried that but I got the same error. Thanks anyway. If anyone else has any ideas, please post them, otherwise I'll just ask my teacher. -------------------- Quoth the raven, "~teehee~"

Techokami	Posted: Feb 5 2007, 12:39 PM
Quit Stalin! Group: MFGG Security Ninja Posts: 7507 Member No.: 30 Joined: 13-October 03 Status: (0d)	Sweet monkey Tuesdays, your code is friggin' terse. I can probably help you, but you need to add in some new lines and indentation first so I can READ it :X --------------------