Question

How we can make multiple counters? The first counter should count from 1 to 10 and the second counter should count from 4 to 20.

Is it possible (Using For or While methods)?

Answer 1

It’s not clear if you mean the loops should be nested or sequential. Here’s how to do nested loops using for:

for (int i = 1; i <= 10; ++i) {
    for (int j = 4; j <= 20; ++j) {
        // do something with i and j
    }
}

The inner loop can, of course, also exist independently.

You can also do either or both loops using while:

int i = 1;
while (i <= 10) {
    for (int j = 4; j <= 20; ++j) {
        // do something with i and j
    }
    ++i;
}

(The inner loop can also be changed to a while loop if you like.)