I been trying to make a piano application on android studio but when i run the application it show error in line 16 here is my code Please help me the error is something like this :____-
---at com.example.user.piano.MainActivity.onCreate(MainActivity.java:16)
public class MainActivity extends AppCompatActivity {
Button button1,button2,button3,button4,button5,button6,button7,button8,button9,button10,button11;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button1=findViewById(R.id.bt1);
button2=findViewById(R.id.bt21);
button3=findViewById(R.id.bt31);
button4=findViewById(R.id.bt41);
button5=findViewById(R.id.bt51);
button6=findViewById(R.id.bt61);
button7=findViewById(R.id.bt71);
button8=findViewById(R.id.bt81);
button9=findViewById(R.id.bt91);
button10=findViewById(R.id.bt101);
button11=findViewById(R.id.bt111);
button1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
music("one");
}
});
button2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
music("two");
}
});
button3.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
music("three");
}
});
button4.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
music("four");
}
});
button5.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
music("five");
}
});
button6.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
music("six");
}
});
button7.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
music("seven");
}
});
button8.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
music("eight");
}
});
button9.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
music("nine");
}
});
button10.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
music("ten");
}
});
button11.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
music("thirteen");
}
});
}public void music(String args){
int musicid =getResources().getIdentifier(args,"raw", "com.example.user.piano");
MediaPlayer obj=MediaPlayer.create(this,musicid);
obj.start();
}
}
