encapsulation

Encapsulation

                        Encapsulation is the technique of making the fields in a class private and providing access to the fields via public methods. If a field is declared private, it cannot be accessed by anyone outside the class, thereby hiding the fields within the class. For this reason, encapsulation is also referred to as data hiding.

                   Encapsulation can be described as a protective barrier that prevents the code and data being randomly accessed by other code defined outside the class. The main benefit of encapsulation is the ability to modify our implemented code without breaking the code of others who use our code. With this feature Encapsulation gives maintainability, flexibility and extensibility to our code.

Ex:--

public class EncapTest{

   private String name;

   private int age;

   public int getAge(){

      return age;

   }

  public String getName(){

      return name;

   }

  public void setAge( age){

      this.age = age;

   }

   public void setName(String name){

      this.name = name;

   }

 }

public class RunEncap{

   public static void main(String args[]){

      EncapTest encap = new EncapTest();

      encap.setName("admin");

      encap.setAge(20);

      System.out.print("Name : " + encap.getName()+ " Age : "+ encap.getAge());

    }

  }