how to get the index and string of the selected item in listview in android

i have a listview like this

companyname              symbol

samsung                  sam
onida                    ond
tata                     ta
.                         .
.                         .
.                         .

so i want to get the index 开发者_JS百科of the selected item and also string of the selected item(i.e.,sam(or)ond(or)ta) .So please tell me how to get the index of the selected item and string also .

Thank you in advance

use this way

listview.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() 
{
    public void onItemSelected(AdapterView parentView, View childView, int position, long id) 
    {
        String text = ((TextView)childView.getText()).toString();
        //The above text variable has the text value of selected item
        // position will reflect the index of selected item
    }
    public void onNothingSelected(AdapterView parentView) 
    {
    }
});

I would prefer implementing the activity as a ListActivity and override the onListItemClick method:

@override
protected void onListItemClick(ListView l, View v, int position, long id)

this gives you the position of the item clicked (I hope this is what you call index).