Date formatting inconsistencies on Android. Varies across locales, Date format settings, devices, and presumably across Android versions too.

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Current Locale:" />

    <TextView
        android:id="@+id/text_current_locale"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="DateFormat.getDateFormat:" />

    <TextView
        android:id="@+id/text_short_date"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="DateFormat.getMediumDateFormat:" />

    <TextView
        android:id="@+id/text_medium_date"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>

MainActivity.java

package com.example.dtmformattingexamples;

import java.util.Date;
import java.util.Locale;

import android.app.Activity;
import android.os.Bundle;
import android.text.format.DateFormat;
import android.widget.TextView;

public class MainActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
	}

	@Override
	protected void onResume() {
		super.onResume();
		((TextView) findViewById(R.id.text_current_locale)).setText(Locale
				.getDefault().toString());
		Date date = new Date();
		// Returns a DateFormat object that can format the date in short form
		// (such as 12/31/1999) according to the current locale and the user's
		// date-order preference.
		((TextView) findViewById(R.id.text_short_date)).setText(DateFormat
				.getDateFormat(this).format(date));
		// Returns a DateFormat object that can format the date in medium form
		// (such as Jan 3, 2000) for the current locale.
		((TextView) findViewById(R.id.text_medium_date)).setText(DateFormat
				.getMediumDateFormat(this).format(date));
	}

}