hi all..
i m very new to android development...i have created one app which works well for inserting into and selecting data from database...
but i don't know how to update data in database...
here is code i have tried...but get NullPointerException...
if (v.getId()==R.id.btnUpdate)
{
Cursor value = null ;
dbAdaptert.open();
String name=value.getString(value.getColumnIndex("name"));
String pass=etpass.getText().toString();
String uname=etuname.getText().toString();
long update=dbAdaptert.updateTest(name, uname, pass);
if(update>=0)
{
Toast.makeText(getApplicationContext(), "Data updated",Toast.LENGTH_LONG).show();
}
else
{
Toast.makeText(getApplicationContext(), "Data not updated",Toast.LENGTH_LONG).show();
}
dbAdaptert.close();
}