How would you implement a condition to continue moving while there are beepers?

How would you implement a condition to continue moving while there are beepers?

• A. while (beeperAvailable()) { pickBeeper(); }
• B. while (nextToABeeper()) { pickBeeper(); }
• C. if (nextToABeeper()) { pickBeeper(); }
• D. moveUntilBeeperDetected();

Answer: (B)

The chosen answer is the most effective solution for continuously moving while there are beepers available. The condition "nextToABeeper()" checks if Karel is currently standing next to a beeper, allowing for a direct response to that specific situation. By using this condition within a loop, Karel can repeatedly pick up beepers as long as one is available directly adjacent to her position. The "pickBeeper()" command inside this loop ensures that Karel will continuously pick up beepers until none remain next to her. This repetition is essential for the task, as it allows Karel to act on the presence of beepers without needing to check other positions or states. In contrast, other choices do not provide the correct execution for the task of continuing movement while beepers are present. Choosing to implement "beeperAvailable()" would not suffice because it may imply checking for beepers in a broader context without confirming Karel's proximity. Additionally, an "if" statement would allow Karel to pick a beeper only once if standing next to one, which does not fulfill the condition of continued movement. Lastly, "moveUntilBeeperDetected()" suggests a movement based on detecting beepers but fails to address the action of picking them up while already

The chosen answer is the most effective solution for continuously moving while there are beepers available. The condition "nextToABeeper()" checks if Karel is currently standing next to a beeper, allowing for a direct response to that specific situation. By using this condition within a loop, Karel can repeatedly pick up beepers as long as one is available directly adjacent to her position.

The "pickBeeper()" command inside this loop ensures that Karel will continuously pick up beepers until none remain next to her. This repetition is essential for the task, as it allows Karel to act on the presence of beepers without needing to check other positions or states.

In contrast, other choices do not provide the correct execution for the task of continuing movement while beepers are present. Choosing to implement "beeperAvailable()" would not suffice because it may imply checking for beepers in a broader context without confirming Karel's proximity. Additionally, an "if" statement would allow Karel to pick a beeper only once if standing next to one, which does not fulfill the condition of continued movement. Lastly, "moveUntilBeeperDetected()" suggests a movement based on detecting beepers but fails to address the action of picking them up while already