Intro to Java: Topic 02 - Overview

Topic 02: Variables & Basic Operations, discusses what variables are and how they are used in programming languages to store and manipulate data. Specifically, this topic covers the basic operations and methods you may use on integers, doubles, and strings. For this lesson's exercise you will learn how to create a basic calculator application.

Learning Tip

Be sure to test out and modify code in Eclipse to make sure you understand what's going on. You should try typing some of the examples yourself to get used to it. This will make it easier for you to remember important keywords, Java API methods, etc.This section assumes you already know how to create and run simple Java programs. If you do not know how to run a Java program, please go back to the previous topic. We will not be posting step by step screenshots this time.