AP CSA Exam Review

• 1 4 10 2 3 4 7 5

• 1 2 4 6 10 7 3 5

• 1 2 3 10 6 7 4 5

• 4 3 1 2 6 7 10 5

• 6 3 7 4 2 1 10 4

• A

• D

• ABD

• ABCD

• ABCDE

If you wanted to set a variable equal to some value, which operator would you use?

• ==
• equals
• =
• !=

If you wanted to check to see if two numerical values were equal, which operator would you use?

• =
• !=
• equals
• ==

To check if some integer x was evenly divisible by another integer y, which line of code would you use?

• if ( x / y = 0)
• if ( x / y == 0 )
• if ( x % y == 0 )
• if ( x % y = 0 )

How would you create a new array of 5 integers?

• int[5] x;
• new int[5] x;
• int[] x = new int[5];
• int x = new int[5];

What is NOT true of arrays?

• A given array can hold both Strings and integers at the same time.
• A given array can hold many integers.
• A given array can hold many Strings.
• A given array can hold Strings and integers, but not both at the same time.

The rows in a two-dimensional array mat are numbered (indexed) from 0 to mat.length.

• TRUE

• FALSE

A class can have an array of objects as a private instance variable.

• TRUE

• FALSE

If a class has a private instance variable that is an array of objects, the elements should be initialized in the class constructor.

• TRUE

• FALSE