Explain While Loop With Example

The while loop in C allows a block of code to be executed repeatedly as long as a given condition remains true. It is often used when we want to repeat a block of code till some condition is satisfied. Examples of while Loop. The below examples show how to use a while loop in a C program Sum of First N Natural Numbers using While loop C.

3. Python Single statement while loop. We can write the while loop on a single statement, by writing the body after the colon in the same line as the while. We can separate the multiple lines of the body by using the semicolon . Example on while loop with else and break statement num5 whilenumgt0 printnum numnum-1 Output

The while loop requires relevant variables to be ready, in this example we need to define an indexing variable, i, which we set to 1. The break Statement With the break statement we can stop the loop even if the while condition is true

Python while Loop. A while loop in Python programming language repeatedly executes a target statement as long as the specified boolean expression is true. This loop starts with while keyword followed by a boolean expression and colon symbol . Then, an indented block of statements starts. Here, statements may be a single statement or a block of statements with uniform indent.

while Loop Syntax while condition body of while loop. Here, The while loop evaluates condition, which is a boolean expression. If the condition is True, body of while loop is executed. The condition is evaluated again. This process continues until the condition is False. Once the condition evaluates to False, the loop terminates. Tip We should update the variables used in condition

2. Break While loop. We can break the while loop prematurely before the condition becomes false. This can be done using break keyword. In the following example, we break the while loop prematurely using a break statement. Python Program . a 4 i 0 while ilta printi i1 if igt1 break Explanation. The variable a 4 and i 0 are initialized.

In this example, we have an outer while loop that iterates from 1 to 3, and an inner while loop that iterates from 1 to 3 for each outer loop iteration. Use meaningful variable names, add comments to explain the purpose of the loop, and break down complex tasks into smaller subtasks. This makes your code more readable and maintainable.

The syntax of a while loop is as follows while condition statements. In this post, I have added some simple examples of using while loops in Python for various needs. Check out these examples to get a clear idea of how while loops work in Python. Let's dive right in. 1. Example of using while loops in Python

Example 5 Nested while Loops. A nested while loop is simply a while loop inside another while loop. We provide separate conditions for each while loop. We also need to make sure to do the increments properly so that the code does not go into an infinite loop. In the following Python while loop example, we have a while loop nested in another

While loop is a fundamental control flow structure in programming, enabling the execution of a block of code repeatedly as long as a specified condition remains true. While loop works by repeatedly executing a block of code as long as a specified condition remains true. It evaluates the condition before each iteration, executes the code block if the condition is true, and terminates when the