Expression instead of condition in if block

[Suhas Bilaye]

I know that in general we write a condition in an if block but...can we write an expression in an if block as in the following code..
Assume the code is inside main method.

    
boolean b1 = true;
boolean b2 = false;
if((b2=true)&&b1)
  System.out.println("2");

This piece of code is from a scjp questionaire posted on the following link (question 2)
scjp

[Ninad Kulkarni]

[Not-so-nice response removed. While we encourage people to put some effort into their posts, there are nice ways to put it, and not-so-nice ways. Be sure to use the former.]

[Anuj Prashar]

Yes we can write expression in if block as long as it is evaluating to a boolean.

[Suhas Bilaye]

Thanks Anuj....

[Campbell Ritchie]

I would regard what the question says as a logic error, but then SCJP questions tend to include weird code which one would never use in real life. Similarly, == false and == true count as poor style.

The correct way to write that expression would have been

if (b2 && b1) . . .