How does Do-While Loop work?
The do-while loop is a control flow construct used in programming to execute a block of code repeatedly until a specified condition becomes false. Here’s how the do-while loop works:
- Initialization: The loop starts with the execution of the block of code inside the
do
statement. Unlike other loop types, the do-while loop guarantees that the block of code will be executed at least once, regardless of the condition. - Condition Evaluation: After executing the block of code inside the
do
statement, the condition specified in thewhile
statement is evaluated. This condition determines whether the loop should continue iterating or terminate. If the condition evaluates totrue
, the loop continues to execute; if it evaluates tofalse
, the loop terminates. - Iterative Execution: If the condition evaluates to
true
, the loop body is executed again, and the process repeats. After each iteration, the condition is evaluated again to determine whether the loop should continue. - Termination: The loop terminates when the condition specified in the
while
statement evaluates tofalse
. Once the condition becomesfalse
, control exits the loop, and program execution proceeds to the next statement following the loop.
Do-While loop in Programming
Do-while loop is a control flow statement found in many programming languages. It is similar to the while loop, but with one key difference: the condition is evaluated after the execution of the loop’s body, ensuring that the loop’s body is executed at least once. In this article, we will learn about the basics of Do while loop, its syntax and its usage in different languages.
Table of Content
- What is Do-While Loop?
- Do-While Loop Syntax
- How does Do-While Loop work?
- Do-While Loop in Different Programming Languages
- Do-While loop in Python
- Do-While loop in JavaScript
- Do-While loop in Java
- Do-While loop in C
- Do-While loop in C++
- Do-While loop in PHP
- Do-While loop in C#
- Do-While Use Cases
- Do-While Loop vs Other Loops