Understanding Java Access Modifiers: Public, Protected, Package-Private, and Private

Java provides several access modifiers to set the accessibility of classes, interfaces, and their members. Understanding when and how to use each of these modifiers is crucial for designing secure and well-structured Java applications. Here’s a guide to help you understand the differences and appropriate use cases for each.

Public

The public modifier makes the class, method, or field accessible from any other class in any package. Use public when you want to allow other parts of your program, or external programs, to interact with your classes or members.

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