PowenKo, android, Tutorial 020-6, Layout, TableLayout, dynamically adding rows to TableLayout

package com.powenko.Tutorial_UI_Layout_TableLayout_DynamicallyAddingRowsToTableLayout;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout.LayoutParams;
import android.widget.TableLayout;
import android.widget.TableRow;

public class Tutorial_UI_Layout_TableLayout_DynamicallyAddingRowsToTableLayoutActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

    	 /* Find Tablelayout defined in main.xml */
        TableLayout tl = (TableLayout)findViewById(R.id.myTableLayout);
             /* Create a new row to be added. */
             TableRow tr = new TableRow(this);
             tr.setLayoutParams(new LayoutParams(
                            LayoutParams.FILL_PARENT,
                            LayoutParams.WRAP_CONTENT));
                  /* Create a Button to be the row-content. */

                  Button b = new Button(this);

                  b.setText("Dynamic Button");
                  b.setLayoutParams(new LayoutParams(
                            LayoutParams.FILL_PARENT,
                            LayoutParams.WRAP_CONTENT));
                  /* Add Button to row. */
                  tr.addView(b);

        /* Add row to TableLayout. */
        tl.addView(tr,new TableLayout.LayoutParams(
                  LayoutParams.FILL_PARENT,
                  LayoutParams.WRAP_CONTENT));
     }

}

res\layout\main.xml

<?xml version="1.0" encoding="utf-8"?>
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/myTableLayout"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
     <TableRow
          android:layout_width="fill_parent"
          android:layout_height="wrap_content">

          <Button android:text="Static Button"/>
     </TableRow>
</TableLayout>