Repeats a statement or group of statements while a given condition is true. It tests the condition before executing the loop body.

Executes a sequence of statements multiple times and abbreviates the code that manages the loop variable.

Like a while statement, except that it tests the condition at the end of the loop body.

You can use one or more loop inside any another while, for or repeat until loop.

Terminates the loop or case statement and transfers execution to the statement immediately following the loop or case statement.

Causes the loop to skip the remainder of its body and immediately retest its condition prior to reiterating.

Transfers control to the labeled statement. Though it is not advised to use goto statement in your program.