code01_single_inheritance.java

class Animal{  
void eat(){System.out.println("eating...");}  
} 

class Dog extends Animal{  
void bark(){System.out.println("barking...");}  
} 
 
class TestInheritance{  
public static void main(String args[]){  
Dog d=new Dog();  
d.bark();  
d.eat();  
}}