Distinguish between a Do While…Loop and Do Until…Loop

Sure! Let's start by understanding the basic differences between a Do While...Loop and a Do Until...Loop.

1. Do While...Loop:

   • In a Do While...Loop, the loop will continue executing as long as the specified condition is true.
   • The condition is checked at the beginning of each iteration. If the condition is true, the loop body is executed. If the condition is false, the loop is exited and the program continues with the next statement after the loop.
   • This means that the loop body may not execute at all if the condition is initially false.

2. Do Until...Loop:

   • In a Do Until...Loop, the loop will continue executing until the specified condition becomes true.
   • The condition is checked at the beginning of each iteration. If the condition is false, the loop body is executed. If the condition is true, the loop is exited and the program continues with the next statement after the loop.
   • This means that the loop body will always execute at least once, even if the condition is initially true.

To summarize:

• Do While...Loop checks the condition at the beginning of each iteration and executes the loop body if the condition is true.
• Do Until...Loop checks the condition at the beginning of each iteration and executes the loop body if the condition is false.

I hope this helps clarify the differences between a Do While...Loop and a Do Until...Loop! Let me know if you have any further questions.