class   Person     {      // private variable      private     String     name  ;      public     void     setName  (  String     name  )     {      this  .  name     =     name  ;     // accessible within class      }      public     String     getName  ()     {     return     name  ;     }   }   public     class   Geeks     {      public     static     void     main  (  String  []     args  )      {      Person     p     =     new     Person  ();      p  .  setName  (  'Alice'  );      // System.out.println(p.name); // Error: 'name'      // has private access      System  .  out  .  println  (  p  .  getName  ());      }   }   

   class   Car     {      String     model  ;     // default access   }   public     class   Main     {          public     static     void     main  (  String  []     args  ){          Car     c     =     new     Car  ();      c  .  model     =     'Tesla'  ;     // accessible within the same package      System  .  out  .  println  (  c  .  model  );      }   }   

   // default access modifier    package     p1  ;      // Class Geek is having    // Default access modifier    class   Geek      {         void     display  ()         {         System  .  out  .  println  (  'Hello World!'  );         }      }   

   // package with default modifier    package     p2  ;      import     p1  .  *  ;     // importing package p1   // This class is having    // default access modifier    class     GeekNew     {         public     static     void     main  (  String     args  [])     {             // Accessing class Geek from package p1       Geek     o     =     new     Geek  ();         o  .  display  ();         }      }   

   class   Vehicle     {      protected     int     speed  ;     // protected member   }   class   Bike     extends     Vehicle     {      void     setSpeed  (  int     s  )      {      speed     =     s  ;     // accessible in subclass      }      int     getSpeed  ()      {      return     speed  ;     // accessible in subclass      }   }   public     class   Main     {      public     static     void     main  (  String  []     args  ){          Bike     b     =     new     Bike  ();      b  .  setSpeed  (  100  );      System  .  out  .  println  (  'Access via subclass method: '      +     b  .  getSpeed  ());      Vehicle     v     =     new     Vehicle  ();      System  .  out  .  println  (  v  .  speed  );      }   }   

   class   MathUtils     {             public     static     int     add  (  int     a       int     b  )     {      return     a     +     b  ;      }   }   public     class   Main     {          public     static     void     main  (  String  []     args  )     {          System  .  out  .  println  (  MathUtils  .  add  (  5       10  ));     // accessible anywhere      }   }