Package

• It is a namespace that organizes a set of related classes and interfaces.
• We can group our different classes under different packages.
• Each package name is separated by a . and each of this separated unit in name is a folder under src in sequential order.
• Class is stored in last folder.
• A package also provides a separate namespace or an identity to the owner of the class.

 package javaimplant.interfaces;  
 public class InterfaceExample   
 {  
      public static void main(String args[])  
      {  
           Animal a1=new Dog();  
           Animal a2=new Cat();  
           a1.makeSound();  
           a2.makeSound();  
      }  
 }  

• Above class is under javaimplant.interfaces package i.e it is under src/javaimplant/interfaces folder in project