Evaluating Expressions that Contain for Loops

Evaluating Expressions

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

for Loop Tutorial

Practice 1: Theater Seats

• 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 seat 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: Time Counts Down

• 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 minutes 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: Printing Pages

• 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 page 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: Next Customer

• 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 customer 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: Hours Left

• 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 hoursLeft 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: To Task

• 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 id 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 for Loops