What does public class mean in java

The public class declaration in Java is used to define a class that is used to create objects with specific properties and behaviors. The syntax structure is: public class ClassName { // class code }. It represents a class and its members that are visible to all other classes, is used to create a template that can be used to create objects, defines the properties and behavior of the class, and organizes code. Every Java program must have one and only one public class with the same name as the source code file.

public class

What is public class in Java?

In Java, the public class declaration is used to define a class. A class is a template used to create objects with specific properties and behaviors.

Structure:

public class The structure of the syntax is as follows:

<code class="java">public class ClassName {
    // 类代码
}</code>

• public: This modifier indicates that the class and its members (methods and variables) are visible to all other classes.
• class: indicates that this is a class declaration.
• ClassName: Class name, using big camel case naming method according to Java naming convention.

Function:

• Creates a template that can be used to create objects.
• Define the attributes (called member variables or fields) and behaviors (called methods) of the class.
• Organize code and establish boundaries between different modules.
• Provides abstractions that allow you to work with complex objects without worrying about their underlying implementation.

Note:

• Each Java program must have one and only one public class whose name is the same as the source code file name.
• The name of the class must be unique and cannot have the same name as other classes in the same package.
• public The access modifier is required because it allows the class to be visible and used throughout the application.

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