Hierarchical Inheritance

class Animal
{
void printA()
{
System.out.println("Animal is runnig");
}
}
class Dog extends Animal
{
void printD()
{
System.out.println("Dog is barking");
}
}
class Cat extends Animal
{
void printL()
{
System.out.println("cat is meow");
}
}
public class main{
public static void main(String[]args){
Dog b=new Dog();
Cat c=new Cat();
b.printA();
b.printD();
c.printA();
c.printL();
}
}