Code Relative layout di Android programming

/* relativelayout.java */
package com.example.relativelayout;

import android.os.Bundle;
import android.app.Activity;
import java.text.SimpleDateFormat;
import java.util.Date;
import android.view.Menu;
import android.widget.TextView;

public class MainActivity extends Activity {
       @Override protected void onCreate(Bundle savedInstanceState) {
              super.onCreate(savedInstanceState);
              setContentView(R.layout.activity_main);
              SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd");
              Date date = new Date();
              String nowDate = dateFormat.format(date);
              TextView dateView = (TextView)findViewById(R.id.dates);

              dateView.setText(nowDate);
              SimpleDateFormat timeFormat = new SimpleDateFormat("HH:mm:ss");
              String nowTime = timeFormat.format(date);
              TextView timeView = (TextView)findViewById(R.id.times);
              timeView.setText(nowTime);
              }
       @Override public boolean onCreateOptionsMenu(Menu menu) {
              // Inflate the menu;
              getMenuInflater().inflate(R.menu.main, menu); return true;
              }
       }

//* Activity_main.xml */

<?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="fill_parent"
     android:layout_height="fill_parent"
     android:paddingLeft="16dp"
     android:paddingRight="16dp" >
     <EditText
         android:id="@+id/name"
         android:layout_width="fill_parent"
         android:layout_height="wrap_content"
         android:hint="@string/reminder" />
         <TextView
             android:id="@+id/dates"
             android:layout_width="0dp"
             android:layout_below="@id/name"
             android:layout_alignParentLeft="true"
                   android:layout_toLeftOf="@+id/times" />
                   <TextView
                       android:id="@id/times"
                       android:layout_width="96dp"
                       android:layout_height="wrap_content"
                       android:layout_below="@id/name"
                       android:layout_alignParentRight="true" />
                       <Button
                           android:id="@+id/ok"
                           android:layout_width="wrap_content"
                           android:layout_height="wrap_content"
                           android:layout_below="@id/times"
                           android:layout_alignParentRight="true"
                           android:layout_marginLeft="10dip"
                           android:text="OK" />
                        <Button
                            android:layout_alignTop="@id/ok"
                            android:text="Cancel"
                            android:layout_height="wrap_content"
                            android:layout_width="wrap_content"
                            android:layout_toLeftOf="@+id/ok"
                            android:layout_below="@+id/entry"/>
</RelativeLayout>

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