Programming Clara Chapter 1
16 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What does the putLeaf() command do?

  • Checks if there is a tree in front of Clara
  • Puts one leaf at Clara's current position (correct)
  • Turns Clara 90 degrees to the right
  • Removes a leaf at Clara's current position

    • What is the function of the turnLeft() command?

  • Clara turns 90 degrees to the left (correct)
  • Clara turns 90 degrees to the right
  • Clara moves one step forward
  • Clara checks if there is a mushroom in front

    • What is the purpose of the treeRight() command?

  • Removes a leaf at Clara's current position
  • Checks if there is a leaf at Clara's current position
  • Checks if there is a tree on Clara's right (correct)
  • Puts one leaf at Clara's current position

    • What happens when the stop() command is executed?

    <p>Clara terminates the execution of the program</p> Signup and view all the answers

    What type of commands are treeFront(), treeRight(), onLeaf(), and mushroomFront()?

    <p>Sensors</p> Signup and view all the answers

    What is the primary function of sensors in Clara's World?

    <p>To sense aspects of the state of Clara's World</p> Signup and view all the answers

    What can be created in Java to illustrate new commands?

    <p>A new method</p> Signup and view all the answers

    In which direction does Clara turn when the turnRight() command is executed?

    <p>90 degrees to the right</p> Signup and view all the answers

    What do actuators, such as move() or turnLeft(), do in Clara's World?

    <p>Instruct Clara to perform a particular action</p> Signup and view all the answers

    What happens when the removeLeaf() command is executed?

    <p>Clara removes a leaf at her current position</p> Signup and view all the answers

    What does the treeFront() method return if there is a tree immediately in front of Clara?

    <p>The value true</p> Signup and view all the answers

    What is the purpose of the stop() command in Clara's World?

    <p>To terminate the execution of the act() method</p> Signup and view all the answers

    In which method can the stop() command not be used?

    <p>run() method</p> Signup and view all the answers

    What is the main difference between the act() and run() methods?

    <p>The act() method executes the code repeatedly, while the run() method executes the code only once</p> Signup and view all the answers

    Why do we use the act() method instead of the run() method in this chapter?

    <p>Because the act() method executes the code repeatedly, while the run() method executes the code only once</p> Signup and view all the answers

    What happens when the code is executed inside the run() method?

    <p>The code is executed once, and then the program terminates</p> Signup and view all the answers

    Study Notes

    Clara's Commands

    • Clara can perform the following commands: move(), turnRight(), putLeaf(), and removeLeaf()
      • move(): Clara moves one step forward in the direction she is currently facing
      • turnRight(): Clara turns 90 degrees to the right
      • putLeaf(): Clara puts one leaf at her current position
      • removeLeaf(): Clara removes a leaf at her current position

    New Commands

    • Clara has gained new skills and commands, including:
      • turnLeft(): Clara turns 90 degrees to the left
      • treeFront(): Clara checks if there is a tree one cell in front
      • treeRight(): Clara checks if there is a tree on her right
      • onLeaf(): Clara checks if there is a leaf at her current position
      • mushroomFront(): Clara checks if there is a mushroom one cell in front
      • stop():Terminate the execution of the program

    Flow of Control and Sensors

    • The turnLeft() command has the same functionality as the corresponding method created in Chapter 1
    • The four new commands (treeFront(), treeRight(), onLeaf(), and mushroomFront()) are sensors that do not change the state of Clara's World, but help sense some aspects of this state
    • These sensor commands return a value in the form of true or false in relation to a particular aspect of Clara's World

    The Difference between act() and run()

    • Code written inside the run() method is executed once and then the program terminates
    • Code written inside the act() method will be executed repeatedly
    • The stop() command only works inside the act() method and will not work inside the run() method

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Learn about Clara's commands such as move, turnRight, putLeaf, and removeLeaf in this introductory chapter. Clara will solve more difficult and interesting problems as the chapters progress.

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser