Intro to Java Exam Review

What is wrong with this method declaration?

(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?

• turnLeft();

• turnleft();

• turnLeft()

• TurnLeft

Say you want to write a program to have Karel put down 300 tennis balls. Which control structure would you use?

• An if statement

• A for loop

• A while loop

• A nested while loop

Say you want to write a program to have Karel to pick up all of the tennis balls in a location, but you don’t know how many tennis balls there are. Which control structure would you use?

• An if statement

• A for loop

• A while loop

• An if/else statement

What is the name of this class?

• Karel

• FunKarel

• Run

• SuperKarel

Which of these methods will create a method called turnRight that will have Karel turn left three times?

• 
• 
• 
• 

Which of these is a valid way to write a single line comment in Java?

• // This is a comment

• ++ This is a comment

• This is a comment //

• /* This is a comment

In the code snippet pictured, how many times will the putBall command run?

• 100

• 1

• 106

• 107