Can I know why this java code prints 'b'. Please help if you can.

Question

char x = 'A';
char y = 'a';
char z = 'B';
z += y-x;
System.out.println(z);

o/p : b

Answer 1

Krishnanshu Dey If you feel too much calculation in less time & need of remembering ASCII values in it, then it can be done without knowing ASCII value & no calculation:
z='B' + 'a' - 'A'
probably 'B'-'A' will be returning 1, so char z='a'+1 that will be 'b'

happy coding

Answer 2

Thanks all of you to sharing your knowledge with me. Now I can easily solve it.

Answer 3

Thanks first to clear my doubt about this. So I have to remember those ASCII values. Is there any short trick to remember those values as I got this problem in challenge and it has only 30 sec to solve.