Namespaces vs Packages

A C# namespace is a way to group a collection of classes and is used in a manner similar to Java's package construct. Users of C++ will notice the similarities between the C# namespace syntax and that in C++. In Java, the package names dictate the directory structure of source files in an application whereas in C# namespaces do not dictate the physical layout of source files in directories only their logical structure. Examples below:

C# Code

  namespace com.carnage4life{

   public class MyClass {
 
   int x; 

   void doStuff(){}

   }

 }

Java Code
  package com.carnage4life;

  public class MyClass {
 
  int x; 

  void doStuff(){}

 }

C# namespace syntax also allows one to nest namespaces in the following way

C# Code
  using System;

  namespace Company{
    
    public class MyClass { /* Company.MyClass */ 
 
        int x; 

        void doStuff(){}

        } 

    namespace Carnage4life{
    
       public class MyOtherClass {  /* Company.Carnage4life.MyOtherClass */ 
 
        int y; 

        void doOtherStuff(){}
    
       public static void Main(string[] args){
    
        Console.WriteLine("Hey, I can nest namespaces"); 
       }

      }// class MyOtherClass
       }// namespace Carnage4life
   }// namespace Company