Android development to determine whether a table exists in the SQLite database

Directly on the method: 

public boolean tabIsExist(SQLiteDatabase db){
        boolean result = false;
        if(yourTableName == null){
            return false;
        }
        Cursor cursor = null;
        try {

            String sql = "select count(*) as c from sqlite_master where type ='table' and name ='"+yourTableName.trim()+"' ";
            cursor = db.rawQuery(sql, null);
            if(cursor.moveToNext()){
                int count = cursor.getInt(0);
                if(count>0){
                    result = true;
                }
            }

        } catch (Exception e) {
        }
        return result;
    }