The while loop executes a group of statements as long as the given condition is True.

When the condition becomes False, the loop stops.

1. Check the condition.
2. If the condition is True, execute the loop body.
3. Again check the condition.
4. Repeat until the condition becomes False.
5. When the condition becomes False, control comes outside the loop.

The variable i starts from 1.

After every iteration, its value increases by 1.

The loop stops when i becomes greater than 10.

The loop starts from 2.

Each time, the value increases by 2, so only even numbers are printed.

The loop starts from 1.

Each time, the value increases by 2, so only odd numbers are printed.

The loop starts from 10.

After every iteration, the value decreases by 1.

The loop stops when the value becomes less than 1.

If the condition is always True, the loop runs forever.

Such a loop is called an Infinite Loop.

An infinite loop happens when the loop condition never becomes False.

This usually happens when the loop variable is not updated correctly.

• Use the while loop when the number of iterations is not known in advance.
• The condition is checked before executing the loop body.
• If the condition is False initially, the loop body does not execute even once.
• Always update the loop variable inside the loop.
• Otherwise, the loop may become an infinite loop.

Topic	Description
while Loop	Executes statements while the condition is True.
Loop Variable	Controls the number of iterations.
Condition	Checked before every iteration.
Infinite Loop	Occurs when the condition never becomes False.