android CursorIndexOutOfBoundsException: Index 20

[Alexander Brown]

I am having problems with my cursor for some reason it is producing the CursorIndexOutOfBoundException.
The error occurs on record 19 according to my counter variable. I belive the problem is occuring within these two method. I set the cursor to move to the first record which appears to work.
Although when I try and fetch the current position it returns a negative one. This is the method I used c.getPosition().

 public void displayFirstRecord(Cursor c)
	    {
	    	if (c.getCount() > 0)
	    	{
	    	c.moveToFirst();
	    	DisplayRadioButton(c,radio1,radio2,radio3,question);
	    	}
	    }
	    
	    public void nextRecord(Cursor c)
	    {
	    	if (c.moveToNext()){ // moveToNext returns true if there is a next row
	    	 c.moveToPosition(counter);
	    		DisplayRadioButton(c,radio1,radio2,radio3,question);} 	
	    	
	    }

Here is my logcat

09-28 16:23:22.134: E/AndroidRuntime(530): FATAL EXCEPTION: main
09-28 16:23:22.134: E/AndroidRuntime(530): android.database.CursorIndexOutOfBoundsException: Index 20 requested, with a size of 20
09-28 16:23:22.134: E/AndroidRuntime(530): at android.database.AbstractCursor.checkPosition(AbstractCursor.java:400)
09-28 16:23:22.134: E/AndroidRuntime(530): at android.database.AbstractWindowedCursor.checkPosition(AbstractWindowedCursor.java:136)
09-28 16:23:22.134: E/AndroidRuntime(530): at android.database.AbstractWindowedCursor.getString(AbstractWindowedCursor.java:50)
09-28 16:23:22.134: E/AndroidRuntime(530): at alex.android.development.Basic_database_questionsActivity.DisplayRadioButton(Basic_database_questionsActivity.java:374)
09-28 16:23:22.134: E/AndroidRuntime(530): at alex.android.development.Basic_database_questionsActivity.nextRecord(Basic_database_questionsActivity.java:144)



Here is the main body of the code

[Przemek Boryka]

Hi !

Maybe problem is in variable "counter," that has value equal 20. Your "coursor" has 20 elements counted from 0 - 19 .. so .. if you try to get element with index 20 you have exception.

Bye !