Error querying sqlite database in android studio

I have a problem in my application, to see if there is someone who can help me.

It turns out that in my application I have made a database with SQLite that has two tables, one for players and one for results.

@Override
public void onCreate(SQLiteDatabase BaseDeDades) {
BaseDeDades.execSQL("create table jugadors(codi int primary key, nom text, cognoms text, data date, club text, categoria text)");
BaseDeDades.execSQL("create table resultats(codipuntuacio int primary key, codijugador int,codiexercici text, puntuacio text, temps long, data date)");
}

To consult the first of the tables (players) that shows a list of all the players entered in the database, I did it as follows.

 @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_llistajug);
Llistajugadors();
}
public void Llistajugadors(){
AdminSQLiteOpenHelper admin = new AdminSQLiteOpenHelper(this,"administracio",null,1);
SQLiteDatabase BaseDeDades = admin.getWritableDatabase();
if(BaseDeDades!=null){
Cursor c= BaseDeDades.rawQuery("select * from jugadors",null);
int quantitat = c.getCount();
int i=0;
String[] array = new String[quantitat];
if (c.moveToFirst()){
do{
String linia = c.getInt(0)+"-"+c.getString(1);
array[i] = linia;
i++;
}while(c.moveToNext());
}
ArrayAdapter<String>adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,array);
final ListView llista = (ListView)findViewById(R.id.llista);
llista.setAdapter(adapter);
llista.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Intent intent = getIntent();
intent.putExtra("dato2", llista.getItemAtPosition(position).toString());
setResult(RESULT_OK,intent);
finish();
}
});
}
}

}

The problem has arisen when trying to consult the data of the other table (results) since I have tried to do it the same way

    @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_llistajug);
jugador = getIntent().getStringExtra("name");
exercici = getIntent().getStringExtra("exercise");
nom = jugador.split("-")[1];
codi = Integer.parseInt(jugador.split("-")[0]);
Resultats();
}
public void Resultats() {
AdminSQLiteOpenHelper admin = new AdminSQLiteOpenHelper(this, "administracio", null, 1);
SQLiteDatabase BaseDeDades = admin.getWritableDatabase();
if (BaseDeDades != null) {
Cursor c2 = BaseDeDades.rawQuery("select * from resultats",null);
int quantitat2 = c2.getCount();
int i2 = 0;
String[] array2 = new String[quantitat2];
if (c2.moveToFirst()) {
do {
String linia2 = c2.getInt(0) + "-" + c2.getString(1);
array2[i2] = linia2;
i2++;
} while (c2.moveToNext());
}
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, array2);
final ListView llista2 = (ListView) findViewById(R.id.llista2);
llista2.setAdapter(adapter);
}
}

}

But when executing this activity, in this case the application stops.

Does anyone know why if I have done it the same way? Thank you

This is the error that appears in Logcat when executing the activity:
Logcat error

Thanks, the bug was fixed. But now I have another problem with the query. How can I make the query for a string?

codijugador i codi are integers and it works correctly but adding another parameter codiexercici = exerici which are strings gives me an error, are they not done the same way?

Thanks, the bug was fixed. But now I have another problem with the query. How can I make the query for a string?

Thanks, the bug was fixed. But now I have another problem with the query. How can I make the query for a string?

co-player i codi are integers and it works correctly but adding another parameter codiexercici = exerici which are strings gives me an error, are they not done the same way?

            Cursor c = BaseDeDades.rawQuery("select * from resultats where codijugador = "+codi+" and codiexercici="+exercici, null);

String must be enclosed inside single quotes, but this is something that you should not do by concatenating the parameters and the single quotes.<br/>
Use ? placeholders for the parameters and the 2nd argument of rawQuery() to pass them:

Cursor c = BaseDeDades.rawQuery(
"select * from resultats where codijugador = ? and codiexercici = ?",
new String[] {String.valueOf(codi), exercici}
);