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//nuevo> java class AdminSqLiteOpenHelper
//agregar extends
public class AdminSqLiteOpenHelper extends SQLiteOpenHelper{
//agregar librerias 
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
//agregar los 3 metodos
public AdminSqLiteOpenHelper(Context context, String name, SQLiteDatabase.CursorFactory factory, int version) {
  super(context, name, factory, version);
}

@Override
public void onCreate(SQLiteDatabase db) {
  //BBDD
  db.execSQL("create table articulos (dbCodigo int primary key, dbDescripcion text, dbPrecio real)");
}

@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}