|| operand

[Netty poestel]

class Test {
public static void main(String [] args) {
int x= 0;
int y= 0;
for (int z = 0; z < 1; z++) {
if (( ++x > 2 ) || (++y > 2)) {
x++;
}
}
System.out.println(x + " " + y);
}
}

++x = 1 and 1 > 2 returns false, so it moves to the 2nd operand
++y= 1 and 1>2 is false.
so the x++ should not get executed.

can anyone clarify the output 1 1.
TIA

[David Ulicny]

++x = 1 and 1 > 2 returns false, so it moves to the 2nd operand
++y= 1 and 1>2 is false.

you answered yourself, ++x and ++y, so after this operation is x = 1 and y = 1

[Netty poestel]

[Anil Kumar Saha]

 
for (int z = 0; z < 1; z++) {
if (( ++x > 2 ) || (++y > 2)) {
x++;
 

The for()loop iterates for 1 time only.Then control goes to if() loop. Now
(( ++x > 2 ) results false.Since || is a short circuit operator, it should not check (( ++y > 2 ), so the value of y should remain 0.

But the output 1,1.

Please clear my doubts

[Barry Gaunt]

Now (( ++x > 2 ) results false.Since || is a short circuit operator, it should not check (( ++y > 2 ),

|| is the logical OR operator, so it must check the second operand if the first operand is false. || shortcuts only if the first operand is true.


Similarly && is the logical AND operator, it shortcuts only if the first operand is false.
[ October 08, 2004: Message edited by: Barry Gaunt ]