Evaluating Expressions that Contain Do..While Loops

Evaluating Expressions

	Grab a Piece of Paper!
	Evaluate each expression. Verify your answer by running the code in the Java Playground.

do..while Loop Tutorial

Practice 1: Counting Loop

• Trace the provide code segment and predict the output.
• Verify your prediction is correct by running the code in the Java Playground.
• If the loop concludes, what is the value of i when the loop is completed?
• If the code results in an infinite loop, explain why. How would you modify the code so that it is no longer an infinite loop? Make this change.
• If the code causes the loop to not execute at all, explain why. How would you modify the code so that the loop iterates at least 1 time?

Practice 2: Saying Hello

• Trace the provide code segment and predict the output.
• Verify your prediction is correct by running the code in the Java Playground.
• If the loop concludes, what is the value of count when the loop is completed?
• If the code results in an infinite loop, explain why. How would you modify the code so that it is no longer an infinite loop? Make this change.
• If the code causes the loop to not execute at all, explain why. How would you modify the code so that the loop iterates at least 1 time?

Practice 3: Counting

• Trace the provide code segment and predict the output.
• Verify your prediction is correct by running the code in the Java Playground.
• If the loop concludes, what is the value of count when the loop is completed?
• If the code results in an infinite loop, explain why. How would you modify the code so that it is no longer an infinite loop? Make this change.
• If the code causes the loop to not execute at all, explain why. How would you modify the code so that the loop iterates at least 1 time?

Practice 4: Summing

• Trace the provide code segment and predict the output.
• Verify your prediction is correct by running the code in the Java Playground.
• If the loop concludes, what is the value of count when the loop is completed?
• If the code results in an infinite loop, explain why. How would you modify the code so that it is no longer an infinite loop? Make this change.
• If the code causes the loop to not execute at all, explain why. How would you modify the code so that the loop iterates at least 1 time?

Practice 5: Skip Counting

• Trace the provide code segment and predict the output.
• Verify your prediction is correct by running the code in the Java Playground.
• If the loop concludes, what is the value of count when the loop is completed?
• If the code results in an infinite loop, explain why. How would you modify the code so that it is no longer an infinite loop? Make this change.
• If the code causes the loop to not execute at all, explain why. How would you modify the code so that the loop iterates at least 1 time?

Practice 6: By Tens

• Trace the provide code segment and predict the output.
• Verify your prediction is correct by running the code in the Java Playground.
• If the loop concludes, what is the value of val when the loop is completed?
• If the code results in an infinite loop, explain why. How would you modify the code so that it is no longer an infinite loop? Make this change.
• If the code causes the loop to not execute at all, explain why. How would you modify the code so that the loop iterates at least 1 time?

Practice 7: Multiplying

• Trace the provide code segment and predict the output.
• Verify your prediction is correct by running the code in the Java Playground.
• If the loop concludes, what is the value of num when the loop is completed?
• If the code results in an infinite loop, explain why. How would you modify the code so that it is no longer an infinite loop? Make this change.
• If the code causes the loop to not execute at all, explain why. How would you modify the code so that the loop iterates at least 1 time?

Resources

Practice: Write Expressions that Contain do..while Loops