java.txt

class Main {
  public static void main(String[] args) {
    // Cat cat_obj = new Cat();
    // cat_obj.calling();
     Dog dog_obj = new Dog();
     dog_obj.calling();

     Human human_obj = new Human();
     human_obj.eat();
     human_obj.walk();
    
     
     
  }
}

class Animal
{
  //which sound does animal provide
  public void sound(String sound)
  {
     System.out.println("Animal Sound is : "+" "+sound);
  }
  // which food does animal eat
  public void food(String animal_name, String animal_food)
  {
    System.out.println(animal_name+" "+"eat"+" "+animal_food);
  }

}
// Cat class which represend the speacification of cat
class Cat
{
  public void calling()
  {
     Animal animal_obj = new Animal();
     animal_obj.food("Cat", "Raw meat");
  }
}


// Dog class which represend the speacification of cat
class Dog
{
  public void calling()
  {
     Animal animal_obj = new Animal();
     animal_obj.food("Dog", "Bone");
  }
}



// Tiger class which represend the speacification of cat
class Tiger
{
  public void calling()
  {
     Animal animal_obj = new Animal();
     animal_obj.food("Tiger", "Raw meat of animal");
  }
}



//Examples of inheritance 


class Walk
{  
 public void walk(){
   System.out.println("Human can walk.");
 }
}  

class Human extends Walk{  
 
 public void eat(){
   System.out.println("Human can eat.");
 }
}