Find the output

Question

Int a=5, b=6;
b = a+b-(a=b) ;
System.out.println("a: "+a+" b: "+b") ;

Answer 1

a : 6 b : 5

Answer 2

Error....
Btw It's a good trick ^^
Then...Let's share the other trick
With you trick often worked for int and double/float type
(I want to swap string and char too)

another trick is....

Answer 3

a^=b;b^=a;a^=b;

But Not worked on String in java :(