[news.eclipse.newcomer] Re: How can I set Eclipse to give me a warning o

[Ray Hurst <rhurst2@xxxxxxx>]

www,
Eclipse can only tell you about syntax errors.
The compiler has an option to tell you if you have used a variable and 
not declared it,

Actually, i just took a second look at your program.
I don't understand how it works in the first place.
You have declared a variable that is local to MyClassA and the tried to 
use it another class doIt. I don't understand how this works as the 
local variable is not visible outside of the scope of MyClassA.

The compiler should have given you a variable not defined error.
Ray

www wrote:
> Hi,
>
> Several times I have forgotten something like below:
>
> public class MyClassA
> {
>     private MyClassB classB;
>     private int A, B , C;
>     
>     public MyClassA()
>     {
>         A = 1;
>         B = 2;
>         C = 99;
>
>         //several times I forgot the following line. To my surprise, I 
> was not warned by Eclipse. It took me a while to find out why my program 
> is not working. How can I set Eclipse to give me a warning.
>         classB = new ClassB();
>
>     }
>
>     public void doIt()
>     {
>         classB.method1();
>     }
>
> }
>
> Another class
>
> public class Test
> {
>     public static void main(String[] args)
>     {
>         MyClassA classA = new MyClassA();
>         classA.doIt();     //since I forgot to initialize classB inside 
> MyClassA code, this won't work. And it is time consuming for me to find 
> it out.
>
>     }
>
>
> }