Accessing Private Methods and Variables in Java

 It is possible to accessing private data members of a java class,from any other classes.
You can achieve this by using reflection API

*****************************AccessingPrivateVariable.java*****************************

import java.lang.reflect.Field;

 import java.lang.reflect.InvocationTargetException;

import java.lang.reflect.Method;

class BaseClass 

{ 

    private String msg= "HelloWorld";

    private String getMsg()

    {

      return msg;

    }

   }

public class AccessingPrivateVariable

{

  public static void main(String[] args)throws IllegalAccessException, InvocationTargetException

  {

     BaseClass bc = new BaseClass();

     Class cls = bc.getClass();

      System.out.println("********Accessing all the methods*************"); 

      Method methods[] = cls.getDeclaredMethods(); 

      for (int i = 0; i < methods.length; i++) 

      { 

           System.out.println(methods[i].getReturnType()+" " +methods[i].getName());

           methods[i].setAccessible(true);

           System.out.println(methods[i].invoke(bc) );

       }

    //  Print all the field names & values

    System.out.println("**************Accessing all the fields************");

    Field fields[] = cls.getDeclaredFields();

    for (int i = 0; i < fields.length; i++){ 

       System.out.println("Field Name: " + fields[i].getName()); 

       fields[i].setAccessible(true); 

       System.out.println(fields[i].get(bc)); 

   }

 }

}

*****************************************PROGRAM ENDS**************************