AP Computer Science Java Review UPDATED ACTUAL Exam Questions and CORRECT Answers

AP Computer Science Java Review
UPDATED ACTUAL Exam Questions and
CORRECT Answers
What are the four valid commands Karel knows? - CORRECT ANSWER - -move();
-turnLeft();
-putBall();
-takeBall();


Which of these is a valid Java Karel command?


A.) move();


B.) move;


C.) move()


D.) move(5) - CORRECT ANSWER - A.) move();



What are rows known as in Karel's world? - CORRECT ANSWER - Streets



What are the columns known as in Karel's world - CORRECT ANSWER - Avenues


If Karel starts at Street 1 and Avenue 3 facing East, what row and column will Karel be on after
this code runs?


move();
move();

,move();
turnLeft();

move(); - CORRECT ANSWER - Street 2 and Avenue 6



How do you write a Java Class? - CORRECT ANSWER - public class SquareKarel
extends Karel
{


}


What is the Run Method? - CORRECT ANSWER - The place where our program starts
running


public void run()
{


}


How do you write a Java Class with Run Method? - CORRECT ANSWER - public class
SquareKarel extends Karel
{
public void run ()
{
// our code goes here
}
}


What is the run method in a Java program with Karel?

, A.) A method that always makes Karel move in a square.


B.) The method that is called just before the program ends.


C.) The method that is called to start a Karel program.


D.) The method that is called in order to move Karel one space forward. - CORRECT
ANSWER - The method that is called to start a Karel program


What does a Karel run method look like?


A.) public run()
{
//code
}




B.) public run(){
//code
}




C.) public void run
{
//code
}