Variables and Primitive Data Types
Sophie Anderson
5 min read
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Study Guide Overview
This AP Computer Science A study guide covers variables and data types, focusing on primitive types like int, double, and boolean. It explains variable declaration, scope, naming conventions (camel casing), and initialization. It also touches upon reserved words and strongly typed nature of Java. The guide includes practice questions on identifying data types.
#AP Computer Science A: Night Before Cram Session 🚀
Hey there, future coder! Feeling the pressure? Don't worry, we've got this. This guide is designed to be your ultimate last-minute review, focusing on the most crucial concepts and exam strategies. Let's make sure you're confident and ready to ace that AP exam!
#1. Variables and Data Types
This is foundational stuff, and it's everywhere on the exam. Get this down, and you're off to a great start!
#1.1 Primitive Data Types
These are your building blocks. Java has a few, but for the AP exam, you really need to know these three like the back of your hand:
- int: Stores whole numbers. Think of it as counting things.
- Range: -2,147,483,648 to 2,147,483,647
Integer.MAX_VALUE,Integer.MIN_VALUEare your boundaries.
Integer Overflow: Going beyond t...
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