AP CSP Loops Practice

Which word means the same as "repeat".

• Iterate

• program

• loop

• for loop

Is used to repeat a specific block of code an unknown number of times, until a condition is met.

• Iteration

• Infinite Loop

• For Loop

• While Loop

Is used to repeat a specific block of code a known number of times.

• Iteration

• Infinite Loop

• For Loop

• While Loop

Read each scenario. In which would a loop be most helpful?

• Maura wants a program to perform a math operation one time.

• Jamila is programming a robot to hop once and then raise its arm once.

• Vinny wants a program to go through a list of 35 of his friends and remind each friend what time a study group starts.

• Damian is writing a program that will tell him what to wear depending on the weather.

adds one to variable x in a loop

• increment (x)

• x++;

• x=x;

• y+1;

How many times will the following program print "hello"?

• 10

• 11

• 9

• This code will loop infinitely

What is wrong with this loop?

• Nothing, it works

• moveForward is not a command

• The value of the variable is 0

• It never ends

We want to simulate constantly flipping a coin until we get 3 heads in a row. What kind of loop should we use?

• For loop

• While loop

• Loop and a half

• Infinite loop

OUTPUT?

var i = 1;

while (i < 5) {

System.out.println("Hello");

i++;

}

• Hello

  Hello

  Hello

  Hello

  Hello

• Hello

  Hello

  Hello

  Hello

• Hello

  Hello

  Hello

• Hello

What is the final sum after this loop executes

• sum = 5

• sum = 10

• sum = 15