how to make columns in table layout spread evenly making maximum use of space available

Question

I was just trying out with table layout to display some data.... The data is a 3 column data and i want that the columns should utilize the whole width available. But it seems that the layout XML code which i had used is just wrapping up the columns according to the content.

Layout XML code

<?xml version="1.0" encoding="utf-8"?>
<TableLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >   
    <TableRow
        android:layout_width="fill_parent">
        <TextView
            android:padding="3dip"
            android:gravity="left"
            android:text="Name"
            />
        <TextView
            android:padding="3dip"
            android:gravity="left"
            android:text="Address"
            />

        <TextView
            android:padding="3dip"
            android:gravity="left"
            android:text="Age"
            />  
    </TableRow>
</TableLayout>