Question

class C{
    static int f1(int i) {
        System.out.print(i + ",");
        return 0;
    }

    public static void main (String[] args) {
        int i = 0;
        i = i++ + f1(i);
        System.out.print(i);
    }
}

how come the answer is 1,0.
Please explain.

Answer 1

i = i++ + f1(i);

first i is incremented to 1 and call f1(1) and there you print i , which prints 1 , and returns 0 which stores in i of main method by calculating 0 + 0 and you print it in main so the output becomes 1, 0