Create your own blog, earn points and get popular!

Whan happens when you compile and run the following code?

Submitted by Steven on Sun, 09/05/2010 - 16:35

SCJP
SCJP

public class Q5 {
 public static void main(String args[]){
  int i = 10;
  int j = 12;
  i+=++j;
  System.out.println(i);
 }
}

a. Program will print 13
b. Program will print 23
c. Program will print 22
d. Program will print 12

Answer:

b is the correct choice. j is incremented before the assignment. Remember that ++j is pre-increment. So, value of j is incremented first and then assigned. j++ would have been assigned first and then incremented. Don't forget that it's i+= so 13 would be added to 10 (value of i) to make 23.