Understanding nested loops

Sometimes, we will need to iterate over another loop. To accomplish this, we use what are called nested or embedded loops. Essentially, a nested or embedded loop is a loop within a loop.

To conceptualize this, let’s look at some pseudocode:

For counter1 = 1 to 100 do
     Print "counter 1 is:" + counter1
     For counter2 = 1 to 50
          Print "counter 2 is: " + counter2
     End_For
End_For

If you’ve never seen a nested loop before, the output might be hard to picture. To alleviate this, consider the following theoretical output:

counter 1 is: 1 <- Outer loop iterates
counter 2 is: 1
counter 2 is: 2
.
.
.
counter 2 is: 50
counter 1 is: 2 <- Outer loop iterates
counter 2 is: 1
counter 2 is: 2
.
.
.
counter 2 is: 50
counter 1 is: 3 <- Outer loop iterates

As you can see in the...