What is while loop in C++ with examples?

In while loop, condition is evaluated first and if it returns true then the statements inside while loop execute, this happens repeatedly until the condition returns false. When condition returns false, the control comes out of loop and jumps to the next statement in the program after while loop.

What is Do While loop with example?

The do while loop checks the condition at the end of the loop. The do while loop is an exit controlled loop, where even if the test condition is false, the loop body will be executed at least once. An example of such a scenario would be when you want to exit your program depending on the user input.

How do you write a while loop in C++?

C++ While Loop Example

#include
using namespace std;
int main() {
int i=1;
while(i<=10)
{
cout<
i++;

How do you define a while loop?

A “While” Loop is used to repeat a specific block of code an unknown number of times, until a condition is met. For example, if we want to ask a user for a number between 1 and 10, we don’t know how many times the user may enter a larger number, so we keep asking “while the number is not between 1 and 10”.

What is the difference between while and do while loop in C++?

do-while loop is similar to while loop, however there is a difference between them: In while loop, condition is evaluated first and then the statements inside loop body gets executed, on the other hand in do-while loop, statements inside do-while gets executed first and then the condition is evaluated.

What is the purpose of do while loop?

In most computer programming languages, a do while loop is a control flow statement that executes a block of code at least once, and then either repeatedly executes the block, or stops executing it, depending on a given boolean condition at the end of the block.

Can we use while loop in C++?

The C++ do-while loop is used to iterate a part of the program several times. If the number of iteration is not fixed and you must have to execute the loop at least once, it is recommended to use do-while loop. The C++ do-while loop is executed at least once because condition is checked after loop body.

Where do we use for loop?

A “For” Loop is used to repeat a specific block of code a known number of times. For example, if we want to check the grade of every student in the class, we loop from 1 to that number. When the number of times is not known before hand, we use a “While” loop.

What is the difference between while loop and do-while loop explain with example?

do-while loop: do while loop is similar to while loop with the only difference that it checks for the condition after executing the statements, and therefore is an example of Exit Control Loop.

What is the main difference between while loop and do-while loop?

Here is the difference table:

while	do-while
Condition is checked first then statement(s) is executed.	Statement(s) is executed atleast once, thereafter condition is checked.
It might occur statement(s) is executed zero times, If condition is false.	At least once the statement(s) is executed.

Do-WHILE loop in C programming language?

In the C programming language, do- while loop is used for execution and evaluation of C code repeatedly until the test expression is false . When the do-while loop is executed. The test expression is evaluated until the condition is satisfied.

Do WHILE loop syntax?

Following is the syntax of a do…while loop − do { // Statements }while (Boolean_expression); Notice that the Boolean expression appears at the end of the loop, so the statements in the loop execute once before the Boolean is tested.

Do WHILE loop in C programming language?

How Does While Loop Works in C First, the while loop evaluates the condition of test expression inside the parenthesis () of a while loop. If the condition of a test expression is true, the block of statements inside the body of ‘while’ loop executed. This process will continue until the condition of the test expression of while loop is evaluated false.

What is difference between for loop and while loop in C?

C# – Difference Between for, while and do while loop. The main difference between for loop, while loop, and do while loop is While loop checks for the condition first. so it may not even enter into the loop, if the condition is false. do while loop, execute the statements in the loop first before checks for the condition. At least one iteration takes places, even if the condition is false.

What is while loop in C++ with examples? In while loop, condition is evaluated first and if it returns true then the statements inside while loop execute, this happens repeatedly until the condition returns false. When condition returns false, the control comes out of loop and jumps to the next statement in the program after…