Error when assigning a value to a class

Question

Hi,
Here's what I have:
package com.myprograms.tools1;
public class A
public long orderId;
public int nameId;
public int carId;
public int anId;
package com.myprograms.tools1;
public class B
public A classOfA;
//MAIN Program
import com.myprograms.tools1;
public class getClass
B b= new B();
b.classOfA.orderId = 10029292;
I get a Null Pointer Exception when I assign a value to the var.
Can anybody help point out the problem?
Thanks!

Answer 1

What exactly is the error message... i.e. line numbers and class names...
Example: Full thread dump Java HotSpot(TM) Client VM (1.5.0-beta2-b51 mixed mode, sharing
"SIGINT handler" daemon prio=10 tid=0x03264410 nid=0xea0 waiting for monitor ent
ry [0x080bf000..0x080bfa68]
        at java.lang.Shutdown.exit(Unknown Source)
        - waiting to lock <0x2b31a868> (a java.lang.Class)
        at java.lang.Terminator$1.handle(Unknown Source)
        at sun.misc.Signal$1.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)Okay, that was too funny... LOL...
This example error is courtesy of me being a complete... Well, let's just say, that was dumb...
It has almost been an hour since I launched off that little app...
You know you did something wrong when you can actually hear the HardDrive and Fan slow down...
Anyway... LOL... what are the errors, and what is the rest of the code ? or is it fixed now...
- MaxxDmg...
- ' He who never sleeps... '