Which Loop Executes at Least Once?

In most computer programming languages, a do while loop is a control flow statement that executes a block of code at least once, and then either repeatedly executes the block, or stops executing it, depending on a given boolean condition at the end of the block.

What loop always executes at least once?

The body of a do loop is always executed at least once.

Almost always there are situations where a loop body should not execute, not even once. Because of this, a do loop is almost always not the appropriate choice.

Which of the loop execute at least once in Java?

The Java do-while loop is executed at least once because condition is checked after loop body.