JAVA ABSTRACTION

    //ABSTRACTION 

    /*
    Data abstraction is the process of hiding certain details and showing only essential information to the user.
    Abstraction can be achieved with either abstract classes or interfaces 

    The abstract keyword is a non-access modifier, used for classes and methods:
    Abstract class: is a restricted class that cannot be used to create objects (to access it, it must be inherited from another class).
    Abstract method: can only be used in an abstract class, and it does not have a body. The body is provided by the subclass (inherited from).

    Se pueden desarrollar los metodos en la interfaz o en las clases que heredan
    */

  public class Abstraction {
      
      public Abstraction(){
          Pig myPig = new Pig(); // Create a Pig object
          myPig.animalSound();
          myPig.sleep();
      }
  }


  abstract class Animal {
    // Abstract method (does not have a body)
    public abstract void animalSound();
    // Regular method
    public void sleep() {
      System.out.println("Zzz");
    }
  }

  // Subclass (inherit from Animal)
  class Pig extends Animal {
    public void animalSound() {
      // The body of animalSound() is provided here
      System.out.println("The pig says: wee wee");
    }
  }