return

[cybel sheriden]

hi

return(y=z);

is the above statement legal , if yes then are we trying to assign z to y and returning z .

[Ed Wallen]

Yes, technically it is "legal" since the compiler will accept it, but it is sloppy coding. Separate the assignment and the return statement to two lines.

-Ed

[Surasak Leenapongpanit]

hi,

return(y=z);

The above code is legal if y and z are boolean variables.

[Sayed Ibrahim Hashimi]

Hi,
I just ran this code:

  
public class Test
{
    public String test(String str)
    {
        String test = "the test did work!!!";
        return ( str=test );
    }
    public int test()
    {
        int y = 4;
        int z = 9;
        return (y=z);
    }
    public static void main(String args[])
    {
        Test test = new Test();
        int result = test.test();
        System.out.println("int result: " + result);
      
        String testStr = test.test("didn't work");
        System.out.println("String result: " + testStr);
    }
}

With the result being:
int result: 9
String result: the test did work!!!


So these seem to work fine.

[Ed Wallen]

Surasak,

In response to your post:

return(y=z);

The above code is legal if y and z are boolean variables.

y & z do not have to be booleans. This is an assignment operation. This will work as long as z is assignable to y. However (I'll repeat again), even though this works it is sloppy coding.

-Ed

[Sayed Ibrahim Hashimi]

I certainly agree that it's sloppy coding, and would never perform it in any usable class. I just created the example previously because of the boolean comment.

[cybel sheriden]

class test4
{
static int a=10;
static int amethod()
{int z=0;
return(a=z);//line L
}
public static void main(String[] args)
{
System.out.println("hello" + a + amethod());
}

}
result is hello 10 0

and i thought z value is returned as well assigned to a,but a still remains 10.
pls xplain.

[Ernest Friedman-Hill]

a isn't set to 0 until amethod() is called; it isn't called until after the value of a is used in the println() statement. Switch the order of a and amethod(), and you'll get 0 0.

[cybel sheriden]

!oops that was simple ......i should have given a thought before posting
thanks