CodeHS Unit 1

What is a condition in Karel programming?

• The place in code where the program stops running.

• A method that returns a true or false answer. Typically used within a control structure.

• The number of times a program loops.

• What karel does during the program.

What is wrong with the style of this method declaration?

private void spinKarel() {

turnLeft();

turnLeft();

turnLeft();

turnLeft();

}

(I) Indenting is wrong

(II) No comment

(III) Not using camelCasing for name

(IV) Brackets are not on their own line

• I only

• I and II

• IV only

• I, II, and IV

• II and III

What is wrong with this method declaration?

public karelDance()

[

move();

turnLeft();

move();

turnLeft();

move();

]

(I) Not using curly brackets

(II) Missing void

(III) Using public instead of private

(IV) Illegal characters in the method name

• I only

• I and II

• I, II, and III

• I, II, III, IV

How can we teach Karel new commands?

• A for loop

• A while loop

• Define a new method

• The run method

Why does a programmer indent their code?

• Helps show the structure of the code.

• Easier for other people to understand.

• A key part of good programming style!

• All of the above

Which of these is a valid Karel command in Java?

• move();

• MOVE

• move;

• move()

Which of these is a valid Karel command in Java?

• turnLeft();

• turnleft();

• turnLeft()

• TurnLeft

public class FunKarel extends Karel

{

public void run()

{

move();

putBall();

move();

}

}

What is the name of this class?

• Karel

• FunKarel

• Run

• SuperKarel

What is the name of the method that gets called to start a Java Karel program?

• go()

• start()

• run()

• move()

Which is the correct class signature for a Karel program named CleanupKarel?

• public class CleanupKarel extends Karel

• public class CleanupKarel < Karel

• public CleanupKarel

• CleanupKarel extends Karel