CodeHS Arrays

What is the process of looping through every element in an array?

• iterating over the array

• looping over the array

• implementing over the array

• stringing over the array

What does this code do?

• adds 1 to each element of the array

• finds the sum of the array

• prints the array to the screen and ends

• throws an exception

What does this code do?

• adds 1 to each element of the array

• finds the sum of the array

• prints the array to the screen and ends

• throws an exception

An array is;

• Shapes
• Sizes
• Options
• Lists of data
  

What is first index value of an array?

• -1

• 0

• 1

• undefine

What surrounds an array?

• Quotations
• Curly Brackets
• Parenthesis
• Square Brackets

array = [1,2,3,4,5]
What is the length of this array?

• 5
• 4
• 0
• 125.4

Which definition below best describe an array?

• An array is a function identifier that can hold more than one parameter.

• An array is a beam of light.

• An array is a special variable, which can hold more than one value at a time.

• An array is a special function, which can hold more than one value at a time.

What are the legal indexes for the array ar, given the following declaration:

int[] ar = {2, 4, 6, 8 }

•  0, 1, 2, 3
•  1, 2, 3, 4
• 2, 4, 6, 8
•  0, 2, 4, 6

Which of the following are good examples of things to store as arrays or lists? 
I – A to-do list 
II – A grocery list 
III – A ball in a game of breakout 
IV – A list of balls in a game of breakout 
V – A loop counter variable

• II only
• III and V
• I, II, and IV
• I, II, III, IV, and V