Pre and Post Increment and Decrement

Pre and Post Increment and Decrement

 

++x is pre-increment  and --x is pre-decrement x++ is post-increment and x-- is post-decrement

With ++x and --x:  means x is incremented BEFORE being used. With x++ and x--:  means x is incremented AFTER being used.

Examples

number a = 1; number b; b = ++a; print(b);               // 2 print(a);               // 2 b = --a; print(b);               // 1 print(a);               // 1

 

number c = 3; number d; d = c++; print(d);                  // 3 print(c);                  // 4 d = c--; print(d);                 // 4 print(c);                 // 3