What is the difference between for loop and while loop?

Question

kindly tell me where can we use for loop but not while loop and visa versa..plzz give me examples....

Answer 1

The while loop is usually used when you need to repeat something until a given condition is true:

inputInvalid = true; while(inputInvalid) { //ask user for input invalidInput = checkValidInput(); }

On the other hand, the for loop is usually used when you need to iterate a given number of times:

for(var i = 0; i < 100; i++) { ...//do something for a 100 times. }

Answer 2

but then in while also we can tell the number of steps

Answer 3

example
int I=0;
while (I <100)
{
I++;
}