How To Change Color Of Textview

I have two xml files one is having the listview and another is having the layout of the listview vth some texviews, I want to change the color of the textview in the second xml file. This is what i have done so far.

main1.xml:

Code:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingTop="4px">
<ListView droid:id="@android:id/list"

[code]....

Code:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="8px">

[code]....

I wanted to change the color of textview date which is storing in `R.id.total`.here the log cat is giving null for the value cl.....and gives me nullpointer exception...