Quick Answer: What Is An Example Of A While Loop?

How do you explain a while loop?

In most computer programming languages, a while loop is a control flow statement that allows code to be executed repeatedly based on a given Boolean condition.

The while loop can be thought of as a repeating if statement..

What is do while loop in C with example?

A do while loop is similar to while loop with one exception that it executes the statements inside the body of do-while before checking the condition. … On the other hand in the while loop, first the condition is checked and then the statements in while loop are executed.

What is Loop flowchart?

Flowcharts show the flow of a program graphically. Flow charts were introduced in the previous chapter to describe how a programs that include if statements are illustrated graphically.

What is for loop and while loop?

for loop: for loop provides a concise way of writing the loop structure. Unlike a while loop, a for statement consumes the initialization, condition and increment/decrement in one line thereby providing a shorter, easy to debug structure of looping.

Which is better for or while loop?

As for infinite loops for(;;) loop is better than while(1) since while evaluates every time the condition but again it depends on the compiler. Depends on the language and most likely its compiler, but they should be equivalent in most languages. It shouldn’t matter which is faster.

How do you end a while loop?

Tips. The break statement exits a for or while loop completely. To skip the rest of the instructions in the loop and begin the next iteration, use a continue statement. break is not defined outside a for or while loop.

What is the use of for loop?

In computer science, a for-loop (or simply for loop) is a control flow statement for specifying iteration, which allows code to be executed repeatedly. Various keywords are used to specify this statement: descendants of ALGOL use “for”, while descendants of Fortran use “do”.

What are the 3 types of loops?

Loops are control structures used to repeat a given section of code a certain number of times or until a particular condition is met. Visual Basic has three main types of loops: for.. next loops, do loops and while loops.

What is the difference between for and while loop in Python?

While loops, like the ForLoop, are used for repeating sections of code – but unlike a for loop, the while loop will not run n times, but until a defined condition is no longer met. If the condition is initially false, the loop body will not be executed at all.

What is Loop example?

A loop is used for executing a block of statements repeatedly until a particular condition is satisfied. For example, when you are displaying number from 1 to 100 you may want set the value of a variable to 1 and display it 100 times, increasing its value by 1 on each loop iteration.

When would you use a for loop?

In general, you should use a for loop when you know how many times the loop should run. If you want the loop to break based on a condition other than the number of times it runs, you should use a while loop.

What is a while loop in Python?

Advertisements. A while loop statement in Python programming language repeatedly executes a target statement as long as a given condition is true.

What is the difference between for loop and while loop with example?

In ‘for’ loop the initialization once done is never repeated. In while loop if initialization is done during condition checking, then initialization is done each time the loop iterate. In ‘for’ loop iteration statement is written at top, hence, executes only after all statements in loop are executed.

Can we use for loop inside while loop?

It is not mandatory to nest same type of loop. We can put a for loop inside a while loop or a do-while loop inside a for loop.

What do you mean by loop?

In computer science, a loop is a programming structure that repeats a sequence of instructions until a specific condition is met. Programmers use loops to cycle through values, add sums of numbers, repeat functions, and many other things. Two of the most common types of loops are the while loop and the for loop. …