while and post increment

[antraarora]

Please help me. I think the right answer is D as it is post-increment. But the right answer is B. Why???
What is the output of the following code:-
int x=4;
int y=7;
while(x++<5 && y++<8){
}
System.out.println("x=" +x +" y=" +y);
A. x=5 y=8
B. x=6 y=8
C. x=6 y=9
D. x=4 y=7

[Anonymous]

Hi,
In the given code printing is done after the while loop.
Here is how it works:
1st iteration initial value x = 4, y = 7
x < 5 evalutes to true , x is incremented x = 5
second operand is evaluated
y<8 is true , y is incremented, y = 8
2nd iteration initial value x = 5, y = 8
x<5 evalutes to false, x is incremented x = 6
because the first operand is false , the second operand is NOT evaluated(short circuit). y is not incremented
while loop terminates.
Hence the output is x = 6, y = 8
-Vani

[Anonymous]

Be careful! The println statement is not inside the while loop. Rethink the while statement being mindful of the logical && considerations and B is the correct answer.

[antraarora]

Thanks Vani...that helps!!!