Understanding Classes, Objects, and Their Usage in Java

In the previous chapter, we covered a short introduction to Java and how to install the editor that we will be typing our code in. We also wrote and executed our first code on the editor.

In this chapter, we will go deeper into some basic concepts, such as strings and variables, and how they are different from each other. We will also see what methods are and how they are put to use with different code. We will discuss why objects are important in our code and how we can implement them.

In this chapter, we will cover the following topics:

• Difference between strings and variables
• Using methods
• Importance of classes and objects in Java