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Operator Problem

Ritu Kapoor
Ranch Hand

Joined: Oct 03, 2004
Posts: 102
What will be the output of the following program. Please tell me the reasons also.

Code
--------------------------------------------------------------------------
class Lang21 {
static boolean a, b, c;
public static void main (String[] args) {
boolean x = (a = true) || (b = true) && (c = true);
System.out.print(a + "," + b + "," + c);
}
}
---------------------------------------------------------------------------
David Ulicny
Ranch Hand

Joined: Aug 04, 2004
Posts: 724
output:
true, false, false

||,&& are short circuits operators, so after || it will stop the evaluation.


SCJP<br />SCWCD <br />ICSD(286)<br />MCP 70-216
Joseph Clark
Ranch Hand

Joined: Sep 10, 2005
Posts: 48
If you duplicate the line . . .


. . . in the first line in the method main(), then you will get a clear picture of what is going on. By default, the class variables are false. The code does something that makes one class variable true.
Sunil Kumar Gupta
Ranch Hand

Joined: Aug 26, 2005
Posts: 824
Your answer is true, false, false


<b>The || operator evaluates its right-hand operand only
if the value of its left-hand operand is false</b>

But here the value on the left side is a true value

the statement <b>a=true</b> is making it true on left side...


I think, it will help u ...


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Ritu Kapoor
Ranch Hand

Joined: Oct 03, 2004
Posts: 102
Thanks guys! I got it.
 
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subject: Operator Problem