package com.example.testmusic;

import androidx.appcompat.app.AppCompatActivity;

import android.media.MediaPlayer; import android.os.Bundle; import android.view.View; import android.widget.Button;

public class MainActivity extends AppCompatActivity {

private int songs[];
private int playing = -1;
Button btn_play, btn_stop;
MediaPlayer mp;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    songs = new int[3];
    songs[0] = R.raw.Dk;
    songs[1] = R.raw.Hynn;
    songs[2] = R.raw.Phs;

    btn_play.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            playing=0;
            if( mp!=null ) {
                mp.stop();
            }
            mp = MediaPlayer.create(MainActivity.this, songs[ playing ]);
            mp.start();
        }
    });

    playing = (playing+1)%songs.length;
    if( mp!=null ) {
        mp.stop();
    }
    mp = MediaPlayer.create(MainActivity.this, songs[ playing ]);
    mp.start();
}

}

songs[0] = R.raw.Dk;

songs[1] = R.raw.Hynn;

songs[2] = R.raw.Phs;

이 부분에서 raw에서 빨간줄 오류가 뜨는데 왜 빨간줄이 뜨는지 모르겠어요 도와주세요 ㅠㅠ