Java Fundamentals

Chpater 2

Variables, Data Types, and Operators

Learning Objectives

By the end of this lesson, you will be able to:

• Use primitive data types in Java
• Use reference types in Java
• Implement simple arithmetic operations
• Use type-casting methods
• Input and output various data types

Introduction

In the previous lesson, we were introduced to the Java ecosystem and the tools that are needed to develop Java programs. In this lesson, we will start our journey of the Java language by looking at the fundamental concepts in the language such as variables, data types, and operations.

Variables and Data Types

One of the fundamental concepts in computer programming is memory, used to store information in the computer. Computers use bits as the smallest ...