Loops in C programming with example

What is a loop?

Loops are used to execute the block of code several times according to the condition given in the loops. Every loop required initialization, condition, increment/decrement in the C programming language.

There are types of the loop:

  1. for loop
  2. while loop
  3. do-while loop.

Learn its detail by clicking the link:

for loop in C

When the programmer knows how many times a set of statements are to be executed, then for loop is used.

It consists of three different parts. The first part is an initialization, the second is testing the condition, and the third increment or decrement.

while loop in C

The while loop is used for looping the block statements. While contains a condition and the statement inside while loop will execute if the condition is true. Inside while loop, increment, or decrement operators must be used otherwise the loop won’t work.

do-while loop in C

The do-while loop is also used to execute a statement or a set of statements repeatedly as long as the condition is true. It can be used when you have to enter the loop at least once. do-while loop tests its condition after it’s been executed at least once. Since the condition is tested at the bottom of a loop, its block of code is always executed at least once. It always executed at least once It is referred to as the exit control structure.

Previous Lecture:

Data Types
Switch Case Statement

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