The below flowchart will help you understand the functioning of the do-while loop. The while statement evaluates expression, which must return a boolean value.

If the expression evaluates to true, the while statement executes the statement(s) in the while block. 3.1. The syntax of a do...while loop in C++ is − do { statement(s); } while( condition ); This program prints numbers from 1 to 10 without actually using the ten printf statements but a while loop.Here, the “\n” in the printf call is used to move to the next line.In this loop, the statement block gets executed first, and then the condition is checked.If the underlying condition is true, then the control returns to the loop otherwise exit it.The below flowchart will help you understand the functioning of the do-while loop.Here is a simple example to find the sum of 1 to 10 using the do-while loopGenerally, the do-while loop is not preferred in applications as it first executes the block of statements and then checks the condition.

In this loop, the statement block gets executed first, and then the condition is checked. do..while is a variant of while loop but it is exit controlled, whereas, while loop was entry controlled.. Exit controlled means unlike while loop in do..while first the code inside the loop will be executed and then the condition is checked.. Of course, you will have to copy and paste the same line 100 times. Well, we can do it by using the print statement 50 times (without using loops). 1 views The do/while loop is generally used when the program loop should run at least once before testing for the stopping condition. You need to use loops. There are 3 types of loops in Java: This process goes on until the test expression is evaluated to To learn more about test expression and how it is evaluated, visit The program below calculates the sum of numbers entered by the user until user enters 0.We should be always careful while working with loops. Like while loop in C, the do-while loop also executes the statement or body of statements several times in programming.

True or False?

The initial value of the variable is set as 5.

If the condition is false in the while loop, the statement will execute for only one single time. If the test expression is evaluated to true,. Instead, if you use loops, you can complete this task in just 3 or 4 lines. In that way, the loop should run four times and display the message box with the current value of the variable. The do while loop stops execution exits when a boolean condition evaluates to false. statements inside the while loop …

How about you need to print a sentence one million times? for loop; for/in a loop (explained later) while loop; do…while loop The loops are the main constructs to implement iterative programming in C.Now that you have started this journey of learning C programming, there will be instances where you may need to run a particular statement block more than once. It risks the security which is like allowing an unauthorized person into a facility and then asking for his ID.Above was the explanation of the while and do-while loops. Conditions in iteration statements may be predefined as in for loop or open-ended as in while loop. In this C programming class, we’ll cover the C while and do-while loop statements. In each iteration of the loop, the value will be decremented by -1. 3.2. Unlike for and while loops, which test the loop condition at the top of the loop, the do...while loop checks its condition at the bottom of the loop.. A do...while loop is similar to a while loop, except that a do...while loop is guaranteed to execute at least one time.. Syntax. In this way even if the condition is false the code inside the loop will be executed once which doesn’t happen in while.