Private Variables

Private Variables

In Java, you may notice keywords in front of variables, especially when looking at object-oriented programming. For example,Ā private is one of the most important keywords, especially in object-oriented programming and within class structures. What does...
Private Variables

AP Computer Science A: Short Circuiting

What is Short-Circuiting? When you use boolean operators like && or || to compare statements, the computer takes short-cuts to be more efficient. These short-cuts result in “short-circuiting”, where the computer doesn’t evaluate all of the...
Private Variables

Interfaces

What is an interfaceā“ An interface is like an abstract class, butĀ a class can inherit multiple interfacesĀ while only one abstract class can be inherited. Like abstract classes, you use interfaces when there are several classes that will have similar methods...
Private Variables

String Methods

These are common String methods that you should understand in order to do the FRQs and answer multiple-choice questions on the AP Computer Science A Exam. In order to demonstrate these methods, we will use these Strings: String a = “apple”; String b =...
Private Variables

AP Computer Science Myths

Not sure what you’re signing up for? Don’t worry! We’ll address some common misconceptions about AP Computer Science A and show you how you’re more prepared than you think! Myth #1: Everyone else taking this class is an experienced coder. There...