Objects & Classes
Accessing an object's instance variable or method require this symbol.
What is a period/dot (.) ?
The symbols used for "and", "or", and "not" used in conditional statements?
(answer should be in order)
What are &&, ||, and ! ?
A collection of primitive values OR objects.
What is an array?
The class that all objects/classes are derived/inherited from.
What is the Object class?
13 % 8 =
What is 5?
A class used to box primitive data
What is a Wrapper class?
The name of this law:
!(A && B) = !A || !B
What is De Morgan's Law?
A way to iterate over array elements without knowing index values.
What is a for-each (or enhanced for) loop?
Another term for parent class.
What is the superclass?
The value returned when using .indexOf("d") on the string "Friday".
What is 3?
The method that creates an instance of the class.
What is the constructor?
The type of loop needed to access every other element of an array.
What is a for loop.
The ArrayList method that alters an element.
What is set?
The keyword that allows us to leverage the constructors and methods in the superclass.
What is "super"?
The term for Java turning a primitive type into an object of its Wrapper Class.
What is autoboxing?
A Java term that is used to indicate that a reference does not currently refer to any object.
What is null/a null reference?
The amount of times the following loop will run:
int i=0;
while(i < 10)
{System.out.println(i);
i++;}
What is 10?
The type of brackets used to declare an ArrayList.
What are "< >"?
The keyword that creates a subclass.
What is "extends"?
The search method that involves narrowing down a sorted list by looking at halves.
What is binary search?
A reference to an object that is currently also referred to by another reference. Each reference is an __________ of another.
Hint: it starts with an "a"
What is an alias?
The mathematical operation to determine how many iterations occur within nested loops.
What is multiplication?
The way to access the amount of columns in some 2D Array (called 'arr').
What is arr[0].length?
When a subclass's method has the same name and parameter(s) as it's parent class, but it performs a different action.
What is overriding?
The one item you must bring to the AP exam.
What is a #2 pencil?