How to add a class in Java?

In Java, you can add a class using the following steps:

1. Create a new Java source file with the same name as the class, and make sure it has a .java extension. For example, if you want to create a class called Student, you should create a file named Student.java.
2. Define a class in the source file. Create a class by using the keyword class followed by the class name. For example, to create a class called Student, you can use the following code:
3. The class Student contains the definition of its member variables and methods.
4. Adding member variables and methods in a class. Member variables define the class’s attributes, while methods define the class’s behaviors. For example, you can add a member variable called name and a method called getName.
5. This is a class called Student with a private variable called name. It has a method called getName which returns the value of the name variable.
6. It is possible to add constructors in a class. Constructors are special methods that are used to initialize objects when they are created. For example, you can add a constructor with one parameter to initialize the “name” member variable.
7. The Student class has a private variable for the student’s name, and includes a constructor to set the name and a method to get the name.
8. Additional methods and member variables can be added in the class to define the behavior and properties of the class as needed.

In Java, each source file can only contain one public class, and the file name must match the name of the public class. If you want to add multiple classes, you can include non-public classes in the same source file, or place them in separate source files.