Introduction to Programming Quiz

What's wrong with this code?

• The go function is called twice

• The go function has a syntax error

• The go function has been defined twice

• go is not a command that Karel understands

How many total times will Karel move in this program?

move()

move()

move()
move()
move()

move()

• 1

• 5

• 6

• 7

What is the proper format for a single line comment in Karel?

• # This is a comment

• // This is a comment

• /* This is a comment

• This is a comment

Why does a programmer indent their code?

• Helps show the structure of the code.

• Easier for other people to understand.

• In Python, it is used to help determine what parts of a code are included in a code block, such as an if statement or for loop.

• All of the above

How can we teach Karel new commands?

• For loop

• While loop

• Define a new function

• The main function

Super Karel starts at Street 1, Avenue 1, facing East in a 5x5 world. What will happen after this code runs?

move()

move()

turn_right()

move()

• Karel ends on street 1, avenue 3

• Karel ends on street 2, avenue 3

• This code won't run because of a syntax error

• Karel will crash into a wall

Karel starts at Street 1, Avenue 1, facing East in a 5x5 world. What will happen after this code runs? move() putball() move() move() move() move() move()

• Karel will end on Street 1, Avenue 2

• Karel will end on Street 1, Avenue 7

• This code won't run because of a syntax error

• Karel will crash into a wall

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 if statements to decompose the problem

How can we improve the following program? move() move() move() move() move() move() move() move() move()

• Break down this program into more functions

• Use a for loop to repeat the move command

• Use a while loop to repeat the move command

• Fix the indentation of this program

In the following code, what would be a good Postcondition to write?

• Karel is on a spot with a tennis ball facing north

• Karel ends one spot above a tennis ball facing East.

• Karel is on the same position but on top of a ball.

• Karel is facing East.