DatabaseQueryHandler.java

//This class is used to write all Abstract (Insert, Query, Update, Delete) methods.
public class DatabaseQueryHandler {
 private SQLiteDatabase mSqLiteDatabase;
 private Context mContext;
//Default Constructor
/*Here I have created parameterised constroctor with context and isWritable as parameters. The boolean value of isWritable allows me to get readable or writable instance of SQLite Database */
 public DatabaseQueryHandler(Context context, boolean isWritable) {
 DatabaseHelper databaseHelper = DatabaseHelper.getInstance(context);
 mContext = context;
 if (isWritable) {
 mSqLiteDatabase = databaseHelper.getWritableDatabase();
 } else {
 mSqLiteDatabase = databaseHelper.getReadableDatabase();
 }}}