Using a while loop
If the condition in the while loop is always true, the while loop will be an infinite loop, and our program will never stop running. This is something we definitely want to avoid! When writing a while loop, we want to ensure that at some point the condition will be false so the loop can stop running.
Also, can we use if condition inside while loop?
In while loop, condition is evaluated first and if it returns true then the statements inside while loop execute. When condition returns false, the control comes out of loop and jumps to the next statement after while loop.
One may also ask, where do we use while loop? The while loop is used to repeat a section of code an unknown number of times until a specific condition is met. For example, say we want to know how many times a given number can be divided by 2 before it is less than or equal to 1.
Similarly one may ask, do While with IF statement?
Contrast with the while loop, which tests the condition before the code within the block is executed, the do–while loop is an exit-condition loop. This means that the code must always be executed first and then the expression or test condition is evaluated. If it is true, the code executes the body of the loop again.
What is difference between for and while loop?
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. In ‘while‘ loop, the iteration statement can be written anywhere in the loop.