Loops Types in C Programming

A loop statement allows us to execute a statement or group of statements multiple times.

C programming language provides the following types of loops to handle looping requirements.

•  while Loop

A while loop in C programming repeatedly executes a target statement as long as a given condition is true.
Syntax
The syntax of a while loop in C programming language is:

• FOR LOOP

A for loop is a repetition control structure that allows you to efficiently write a loop that needs to execute a specific number of times.
Syntax
The syntax of a for loop in C programming language is:

•  do…while Loop

Unlike for and while loops, which test the loop condition at the top of the loop, the do...while loop in C programming checks its condition at the bottom of the loop.
A do...while loop is similar to a while loop, except the fact that it is guaranteed to execute at least one time.
Syntax
The syntax of a do...while loop in C programming language is:

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•  Nested Loops

C programming allows to use one loop inside another loop. The following section shows a few examples to illustrate the concept.
Syntax
The syntax for a nested for loop statement in C is as follows:

 The syntax for a nested while loop statement in C programming language is as follows:

           The syntax for a nested do...while loop statement in C programming language is as follows: