Why is my nested for loop not displaying Hello World 2

Question

Here is my nested for loop.

int c = 1;
for (int d = 0; d < 10; d++) {
    if (c == 6) {
        System.out.println("Hello World 1");
    } else if (c == 7) {
        System.out.println("Hello World 2");
    }
    for (int e = 0; e < 5; e++) {
        System.out.println("This is the nested for loop :" +c);
        c++;
    }
}

This is what my console is printing out.

This is the nested for loop :1
This is the nested for loop :2
This is the nested for loop :3
This is the nested for loop :4
This is the nested for loop :5
Hello World 1
This is the nested for loop :6
This is the nested for loop :7
This is the nested for loop :8

And it continues printing this until it reach's 50 and does not display Hello World 2.

Answer 1

Let me add comments to your current code. Read this code by going through the steps 1 to 7 in order.

int c = 1;
for (int d = 0; d < 10; d++) {
    // 1. When we are here for the first time, c = 1, both if are false
    // 4. Now, c is equal to 6 so the first if is true, "Hello World 1" is printed
    // 7. Now, c is equal to 11, both if are false, nothing is printed...
    if (c == 6) {
        System.out.println("Hello World 1");
    } else if (c == 7) {
        System.out.println("Hello World 2");
    }
    for (int e = 0; e < 5; e++) {
        // 2. We reach here, c is incremented 5 times.
        // 5. c is incremented again 5 times
        System.out.println("This is the nested for loop :" +c);
        c++;
    }
    // 3. When we're here, c that was 1 is now 6 (incremented 5 times in step 2)
    // 6. When we're here for the second time, c is now 11 (6 incremented 5 times in step 5)
}

Basically, at the start of the first for, c is 1, then 6, then 11... but never 7, so "Hello World 2" is never printed.