Web II Semester Final Review

Which of the following commands is a valid Karel command?

• move
• move;
• move();
• move()

Why do we use functions in Karel programs?

• break down our program into smaller parts
• avoid repeating code
• make our program more readable
• all of these

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 these

How can we teach Karel new commands?

• For loop
• While loop
• Define a new function
• The start function

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

• If statement
• While loop
• For loop
• Nested while loop

• 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

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

• called 1 time, defined 1 time
• called 1 time, defined 3 times
• called 3 times, defined 1 time
• called 3 times, defined 3 times

• 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

What is the purpose of using a for loop in code?

• to do something if a condition is true
• to do something while a condition is true
• to repeat something a fixed number of times
• to make programs run faster