Is a For Loop always executed at least once?

Question

According to my teacher, a for-loop always executes at least once, even if the condition is not met.

Example (like I know it from C++):

for (int i=6; i &         


        

Answer 1

A for-loop always makes sure the condition is true before running the program. Whereas, a do-loop runs the program at least once and then checks the condition.

Answer 2

An entry controlled loop will never execute if the condition is false, however, exit controlled loop will execute at least once.

Answer 3

A loop will only execute while its condition is true. Since a for loop and a while loop both check the condition before the body is executed they will never execute if the condition is false.

The only loop that will is a do while loop. With a do while loop the condition is not evaluated until the end of the loop. Because of that a do while loop will always execute at least once.

Answer 4

You could say a for-loop is always evaluated at least once.

But if a for-loop's condition is not met, its block will never execute.

Because you didn't ask about other loops, I won't address those.