[Java 소스] 다형성 예

[Java 소스] 다형성 예

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Drummer.java

Musician.java

Pianist.java

Program.java

public class Musician {

    public void play(){

        System.out.println("랄라라");

    }

}

public class Pianist extends Musician{

    @Override public void play(){

        System.out.println("딩동댕");

    }

}

public class Drummer extends Musician{

    @Override public void play(){

        System.out.println("두두둥");

    }

}

public class Program {

    public static void main(String[] args){

        Musician musician = new Musician();

        musician.play();

        musician = new Pianist();

        musician.play();

        musician = new Drummer();

        musician.play();

    }

}

실행 결과

랄라라

딩동댕

두두둥

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본문

[Java] 5. 2 다형성