Question

i have to select a random row from a table and display it on buttons and textview… what i am using it …..

Cursor result=sqldb.rawQuery(“SELECT * FROM quiztable ORDER BY RANDOM() LIMIT 1”,null );

            String ques=result.getString(1);
            String op1=result.getString(2);
            String op2=result.getString(3);
            String op3=result.getString(4);
            String ans=result.getString(5);
            txt17.setText(ques);
            btn10.setText(op1);
            btn11.setText(op2);
            btn12.setText(op3);

but the record is not displayed…. i tried try and catch block and display the error using toast …. its say “index -1 requested,with a size 1”

Whts the error in the code?? can any1 tell the solution for it??

thank you in advance ….

Answer 1

You are not moving the cursor on before you take the items from it.

Before the line

 String ques=result.getString(1);

Try calling:

result.moveToFirst();

The cursor always defaults to position -1, the one before the first record. Both moveToFirst(); or moveToNext(); will get you to the first record.