36_SuperKeyword

      // super = keyword refers to the superclass (parent) of an object
      //         very similar to the "this" keyword
      
<Main.java>
public class Main {
   public static void main(String[] args) {
   Hero hero1 = new Hero("Batman",42,"$$$");
   Hero hero2 = new Hero("Superman",43,"everything");

   System.out.println(hero2.toString());
/* >>Superman
43
everything
 */

   /* System.out.println(hero1.name); //>>Batman
      System.out.println(hero1.age); //>>42
      System.out.println(hero1.power); //>>$$$
    */
   }
}

<Person.java>
public class Person {
    String name;
    int age;

    Person(String name, int age){
        this.name = name;
        this.age=age;
    }
    public String toString(){
        return this.name + "\n" + this.age+"\n";
    }
}

<Hero.java>
public class Hero extends Person{
    String power;
    Hero(String name, int age, String power){
        super(name, age);
        this.power = power;
    }
    public String toString() {
        return super.toString() +this.power;
    }
}