📦 What is a Package?

A package in Java is a namespace that organizes a set of related classes and interfaces. Conceptually, you can think of packages as being similar to different folders on your computer.

📌 Benefits of Using Packages

• Avoids name conflicts
• Makes it easier to locate and use classes
• Provides access protection
• Can control access with public, protected, and private modifiers

🧪 Example: Creating and Using a Package

                    // File: MyPackage/Dog.java
                    package MyPackage;
                    
                    public class Dog {
                      public void bark() {
                        System.out.println("Woof!");
                      }
                    }
                    
                    // File: Main.java
                    import MyPackage.Dog;
                    
                    public class Main {
                      public static void main(String[] args) {
                        Dog d = new Dog();
                        d.bark();
                      }
                    }

🔍 Types of Packages

• Built-in Packages - e.g., java.util, java.io
• User-defined Packages - created by programmers for modular code