Java simple inheritance

gistfile1.java

class Person
{
    public void sayHello()
    {
        System.out.println("Hello World");
    }
}
class Employee extends Person
{
    public void sayHello()
    {
        super.sayHello();
    }
}

public class MyClass {
     
    public static void main(String args[]) {
       
      Employee p = new Employee();
      
      p.sayHello();
    }
}