java

[gpveena20]

public class Test {
12. public static void main(String [] args) {
13. int x =5;
14. boolean b1 = true;
15. boolean b2 = false;
16.
17.if((x==4) && !b2)
18. System.out.print(”l “);
19. System.out.print(”2 “);
20. if ((b2 = true) && b1)
21. System.out.print(”3 “);
22. }
23. }
What is the result?
A. 2
B. 3
C. 1 2
D. 2 3
E. 1 2 3
F. Compilation fails.
G. Au exceptional is thrown at runtime.


output for if stm is true
so that output will print =123

is thisright or wrong

[RamyaSivakanth]

Hi,
Please work out and check the output.If there is any doubt ask.

-Regards
Ramya

[pbrockway2]

RamyaSivakanth is right.

But my suggestion is to hand this in:

H. Deliberate non-use of braces and abominations like "if((b2==true)&&cetera)" deserve contempt.

[gpveena20]

but the answer was given like 23 in book

thats y little confused....
thank u

[pbrockway2]

if((x==4) && !b2)

The first if condition is not true because x is 5 and 5 is not 4.

Hence the inital "1" will not be printed.

[CJSLMAN]

if ((b2 = true) && b1)

Also, you have an error in this "if" statement... it should be "==" to compare ...

edit: and on second thought, you don't even need a comparation...

if (b2 && b1)

Luck,
CJSL

[Eranga]

Code:

if ((b2 = true) && b1)

Also, you have an error in this "if" statement... it should be "==" to compare ...

Chris, I'm mess-up with this. For me it's a valid statement. You can have assignments in if condition like that.

So,

if ((b2 = true) && b1)

here b2 assign to true and since the b1 is true, the condition evaluates as true. So the final result is 2 3

[satti]

yeh the result is 2 3 it correct

[CJSLMAN]

Eranga: Oh..ok... yes, I understand that you can have assignments in an "if" statement. I've rarely seen it used that way, so I assumed that it was supposed to be a an assignment. Sorry for any misunderstandings.

CJSL

[Eranga]

It's okay Chris, I just added what I've seen in the code. I don't think that our thread starter knows about that, and I try to pointed it.