Unit 4 Quiz 1 Review

Which of these is a valid Java Karel command?

• move;

• 
  

  move();

• 
  

  move()

• 
  

  move(5);

If Karel is facing North and the following code runs, which direction is Karel facing now?

turnLeft();

turnLeft();

• North

• East

• South

• West

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();

• Street 1 and Avenue 3

• Street 4 and Avenue 4

• Street 2 and Avenue 6

• Street 6 and Avenue 2

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

• A method that always makes Karel move in a square.

• The method that is called just before the program ends.

• The method that is called to start a Karel program.

• The method that is called in order to move Karel one space forward.

What can be used to teach Karel to turn right?

• Variables

• Methods

• Dog treats

• Karel can already turn right

Why do we use methods in a Java program for Karel?

• 
  

  To stop the Java program

• 
  

  To display the current row that Karel is in

• We do not use methods in Java

• 
  

  To teach Karel new commands

What is top down design?

• Top down design is a way of designing your program by starting with the biggest problem and breaking it down into smaller and smaller pieces that are easier to solve.

• Top down design is a way that you can create designs on a computer to put on a web page

• Top down design is a way of designing your programs starting with the individual commands first

• Top down design is a way to use loops and classes to decompose the problem

Why do we use methods in Java programming?

• Break down our program into smaller parts

• Avoid repeating code

• Make our program more readable

• All of these

The grid that Karel lives in is called the _____.

What is a code comment?

• A way to teach Karel a new word

• 
  

  A way to give notes to the reader to explain what your code is doing

• A message to your teacher in code

• A place to write whatever you want in your code