What is the difference between for and while loop when should these loops be used?

The ‘for’ loop used only when we already knew the number of iterations. The ‘while’ loop used only when the number of iteration are not exactly known. If the condition is not put up in ‘for’ loop, then loop iterates infinite times. In ‘while’ loop, the iteration statement can be written anywhere in the loop.

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

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.

Why you shouldn’t use while loops?

The principal complaint about while loops is that they may never end: while (true) { } This is the infinite loop. If it ever happens that you construct an infinite loop in code, that code will become non-responsive at run time.

Why use a for loop instead of a while 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.

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.

What is the difference between for loop and while loop?

These statements are commonly called loops. Here, the main difference between a while loop and do while loop is that while loop check condition before iteration of the loop, whereas do-while loop, checks the condition after the execution of the statements inside the loop.

When to use while loop?

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.

Do WHILE LOOP examples?

The various parts of the do-while loop are: Test Expression: In this expression we have to test the condition. If the condition evaluates to true then we will execute the body of the loop and go to update expression. Otherwise, we will exit from the while loop. Example: i <= 10

Do while vs while loop?

The do while loop is similar to the while loop. But the condition is checked after the execution of the loop statements. Therefore, whether the condition is true or false, the loop will execute at least one time. The condition is checked after the loop execution.