A while loop is similar to a for-loop, however, it is used when we need to execute a block of code repeatedly based on a condition. The syntax of a while-loop is simpler than that of a for-loop:
The following diagram shows the execution process of a while loop:
Although the while loop may seem very similar to the for-loop at first, In more advanced levels of programming the difference becomes apparent. We might explore the usage of different kinds of loops in the Arrays section.
We can write
true as the condition of a while-loop to create an infinite loop:
How many iterations will the following loop have?
Select the correct answer
Everything was clear?