Types and ExpressionsYou may be surprised to learn that the statements++ ; and x = x + 1;...

Types and Expressions

You may be surprised to learn that the statements++ ; and x = x + 1; are not necessarily equivalent. Although the following segments appear to be performing identical tasks, segment (a) produces output and segment (b) does not compile.

(a)

byte x = 1;

x++;

System.out.println(x);

(b)

byte x = 1;

x = x + 1;

System.out.println(x);

What is the output of (a)? What is the problem with (b)? Hint: Consider data types.