do while loop example

Full Answer

Do while vs while loop?

While loop is entry controlled loop whereas do while is exit controlled loop. In the while loop, we do not need to add a semicolon at the end of a while condition but we need to add a semicolon at the end of the while condition in the do while loop.

What does the term DO WHILE LOOP mean?

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 repeatedly executes the block, or not, depending on a given boolean condition at the end of the block. Note though that unlike most languages, Fortran's do loop is actually the same as the for loop.

When should use a while loop over a DO LOOP?

Renember: the for loop is to enhance readability; if your for loop semantics is unreadable, then better use a while loop. Typically, you would want to use a for loop when you have a determinate number of iterations and a while loop when you have an indeterminate number of iterations.

What is the different between Loop and DO WHILE LOOP?

while condition

• The controlling condition here appears at the beginning of the loop.
• The iterations do not occur if the condition at the first iteration results in False.
• It is also known as an entry-controlled loop
• There is no condition at the end of the loop.
• It doesn’t need to execute at least one.

Do while loop is an example of?

We may now conclude that 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. For and while loops are examples of an entry controlled loop as the test condition is checked before entering the loop body.19-Feb-2022

What is do while loop in C with example?

The do... while loop executes at least once i.e. the first iteration runs without checking the condition. The condition is checked only after the first iteration has been executed. do { printf("Enter a number: "); scanf("%lf", &number); sum += number; } while(number !=

What is the do while loop syntax?

The syntax is: do { statements } while (condition); Here's what it does. First, the statements are executed, then the condition is tested; if it is true , then the entire loop is executed again.

Do vs do while loop?

The condition may be any expression, and true is any nonzero value. The loop iterates while the condition is true. When the condition becomes false, the program control passes to the line immediately following the loop....Output.While LoopDo-While Loopwhile(condition){ //statement }do{ //statement }while(condition);3 more rows•29-Apr-2019

Do loops in C++ example?

C++ do-while Loop Example#include using namespace std;int main() {int i = 1;do{cout<

Do While loop yes or no C++?

0:222:53The do while Loop (user enters Y or N to continue) - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd if the user says yes it'll go through if the user says no it will not. So you'll see here I haveMoreAnd if the user says yes it'll go through if the user says no it will not. So you'll see here I have a character again where the user is going to enter either a Y or an N depending.

What is do while loop in Java?

The do/while loop is a variant of the while loop. This loop will execute the code block once, before checking if the condition is true, then it will repeat the loop as long as the condition is true.

What is do while loop in PHP?

The do... while loop - Loops through a block of code once, and then repeats the loop as long as the specified condition is true.

What is do while function in Matlab?

How do while loop works in Matlab?The first condition limits the loop at the time of execution.Second parameter statements mean what is actually expected output.The third parameter is the incrementing loop variable. If we missed the increment line then the loop will execute infinite times.

Do-while and while loop is same true or false?

Explanation: do-while loop is exit controlled loop whereas while loopis an entry controlled loop.12-Sept-2020

What is a do while loop?

The general syntax of a do while loop in other programming languages looks something like this:

How to emulate a do while loop in Python

To create a do while loop in Python, you need to modify the while loop a bit in order to get similar behavior to a do while loop in other languages.

What is an infinite loop?

Infinite while loop. If the condition of a loop is always true, the loop runs for infinite times (until the memory is full). For example, // infinite while loop while(true) { // body of the loop }. Here is an example of an infinite do...while loop.

What is a do while loop?

The do...while loop is a variant of the while loop with one important difference: the body of do...while loop is executed once before the condition is checked. Its syntax is: do { // body of loop; } while (condition); Here, The body of the loop is executed at first. Then the condition is evaluated.

What is a loop in computer programming?

In computer programming, loops are used to repeat a block of code. For example, let's say we want to show a message 100 times. Then instead of writing the print statement 100 times, we can use a loop. That was just a simple example; we can achieve much more efficiency and sophistication in our programs by making effective use of loops.

Do.while loop ends?

Here, the do...while loop continues until the user enters a negative number. When the number is negative, the loop terminates; the negative number is not added to the sum variable.

How many times can you test a condition?

You can test condition only one time, at either the start or the end of the loop. If you test condition at the start of the loop (in the Do statement), the loop might not run even one time. If you test at the end of the loop (in the Loop statement), the loop always runs at least one time. The condition usually results from a comparison ...

What is exit do?

One use of Exit Do is to test for a condition that could cause an endless loop, which is a loop that could run a large or even infinite number of times. You can use Exit Do to escape the loop. You can include any number of Exit Do statements anywhere in a Do…Loop.

When does a condition stop the loop?

In the following example, condition stops the loop when the index variable is greater than 100. The If statement in the loop, however, causes the Exit Do statement to stop the loop when the index variable is greater than 10.

When to use "do loop"?

Use a Do...Loop structure when you want to repeat a set of statements an indefinite number of times, until a condition is satisfied. If you want to repeat the statements a set number of times, the For...Next Statement is usually a better choice. You can use either While or Until to specify condition, but not both.

Do loops have more flexibility?

The Do...Loop structure gives you more flexibility than the While...End While Statement because it enables you to decide whether to end the loop when condition stops being True or when it first becomes True. It also enables you to test condition at either the start or the end of the loop.

What happens if the condition is always true?

Note: If the condition is always true, the loop will never end. This will crash your browser. Note: If you are using a variable with the condition, initialize it before the loop, and increment it within the loop. If you forget to increase the variable, the loop will never end. This will also crash your browser.

What is a while loop?

while - loops through a block of code while a specified condition is true. do/while - loops through a block of code once, and then repeats the loop while a specified condition is true.

When to use "do while" in JavaScript?

The do/while statement is used when you want to run a loop at least one time, no matter what. JavaScript supports different kinds of loops: