PlayerHierarchy.java

// Base class: Player
class Player {
    String name;
    int age;
    String position;

    // Constructor
    Player(String name, int age, String position) {
        this.name = name;
        this.age = age;
        this.position = position;
    }

    // Common method for all players
    void play() {
        System.out.println(name + " is playing as a " + position);
    }

    void train() {
        System.out.println(name + " is training.");
    }
}

// Cricket Player subclass
class Cricket_Player extends Player {
    Cricket_Player(String name, int age, String position) {
        super(name, age, position);
    }

    @Override
    void play() {
        System.out.println(name + " is playing cricket as a " + position);
    }
}

// Football Player subclass
class Football_Player extends Player {
    Football_Player(String name, int age, String position) {
        super(name, age, position);
    }

    @Override
    void play() {
        System.out.println(name + " is playing football as a " + position);
    }
}

// Hockey Player subclass
class Hockey_Player extends Player {
    Hockey_Player(String name, int age, String position) {
        super(name, age, position);
    }

    @Override
    void play() {
        System.out.println(name + " is playing hockey as a " + position);
    }
}

// Main class to test the hierarchy
public class PlayerHierarchy {
    public static void main(String[] args) {
        Cricket_Player cricketer = new Cricket_Player("Virat", 34, "Batsman");
        Football_Player footballer = new Football_Player("Messi", 36, "Forward");
        Hockey_Player hockeyPlayer = new Hockey_Player("Dhyan", 40, "Midfielder");

        cricketer.play();
        cricketer.train();

        footballer.play();
        footballer.train();

        hockeyPlayer.play();
        hockeyPlayer.train();
    }
} // <-- Ensuring the main class is properly closed