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Classes

Java Classes

Defining Java Classes

Java classes use class with fields and methods.

Introduction to Java Classes

Java classes form the blueprint for creating objects in object-oriented programming. A class encapsulates data for the object and methods to manipulate that data. Understanding how to define and use classes is fundamental to mastering Java.

Defining a Java Class

A Java class is defined using the class keyword followed by the class name. Inside the class, you can define fields, methods, and constructors. Here's a basic example:

Fields in Java Classes

Fields, also known as member variables, are used to store data specific to each object. They are defined within a class and can have different access modifiers (e.g., private, public).

Methods in Java Classes

Methods define the behavior of the objects created from the class. They are similar to functions in other programming languages and can access and modify the fields of the class. Methods can have parameters and return types.

Constructors in Java Classes

Constructors are special methods used to initialize objects. They have the same name as the class and do not have a return type. A constructor can be used to set initial values for object attributes.

Creating and Using Objects

Once a class is defined, you can create objects from it using the new keyword. Here's how you can create a Car object and call its method:

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