gt: 		if (s == null) return null;
context: /*
   * 				Twidere - Twitter client for Android
   * 
   *  Copyright (C) 2012-2014 Mariotaku Lee <mariotaku.lee@gmail.com>
   * 
   *  This program is free software: you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation, either version 3 of the License, or
   *  (at your option) any later version.
   * 
   *  This program is distributed in the hope that it will be useful,
   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *  GNU General Public License for more details.
   * 
   *  You should have received a copy of the GNU General Public License
   *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
   */
  
  package org.mariotaku.twidere.util;
  
  import java.util.ArrayList;
  import java.util.List;
  
  public final class ArrayUtils {
  
  	private ArrayUtils() {
  		throw new AssertionError("You are trying to create an instance for this utility class!");
  	}
  
  	public static boolean contains(final int[] array, final int value) {
  		if (array == null) return false;
  		for (final int item : array) {
  			if (item == value) return true;
  		}
  		return false;
  	}
  
  	public static boolean contains(final long[] array, final long value) {
  		if (array == null) return false;
  		for (final long item : array) {
  			if (item == value) return true;
  		}
  		return false;
  	}
  
  	public static boolean contains(final Object[] array, final Object value) {
  		if (array == null || value == null) return false;
  		return contains(array, new Object[] { value });
  	}
  
  	public static boolean contains(final Object[] array, final Object[] values) {
  		if (array == null || values == null) return false;
  		for (final Object item : array) {
  			for (final Object value : values) {
  				if (item == null || value == null) {
  					if (item == value) return true;
  					continue;
  				}
  				if (item.equals(value)) return true;
  			}
  		}
  		return false;
  	}
  
  	public static boolean contentMatch(final Object[] array1, final Object[] array2) {
  		if (array1 == null || array2 == null) return array1 == array2;
  		if (array1.length != array2.length) return false;
  		final int length = array1.length;
  		for (int i = 0; i < length; i++) {
  			if (!contains(array2, array1[i])) return false;
  		}
  		return true;
  	}
  
  	public static long[] fromList(final List<Long> list) {
  		if (list == null) return null;
  		final int count = list.size();
  		final long[] array = new long[count];
  		for (int i = 0; i < count; i++) {
  			array[i] = list.get(i);
  		}
  		return array;
  	}
  
  	public static int indexOf(final int[] array, final int value) {
  		final int length = array.length;
  		for (int i = 0; i < length; i++) {
  			if (array[i] == value) return i;
  		}
  		return -1;
  	}
  
  	public static int indexOf(final long[] array, final long value) {
  		final int length = array.length;
  		for (int i = 0; i < length; i++) {
  			if (array[i] == value) return i;
  		}
  		return -1;
  	}
  
  	public static int indexOf(final Object[] array, final Object value) {
  		final int length = array.length;
  		for (int i = 0; i < length; i++) {
  			if (array[i].equals(value)) return i;
  		}
  		return -1;
  	}
  
  	public static long[] intersection(final long[] array1, final long[] array2) {
  		if (array1 == null || array2 == null) return new long[0];
  		final List<Long> list1 = new ArrayList<Long>();
  		for (final long item : array1) {
  			list1.add(item);
  		}
  		final List<Long> list2 = new ArrayList<Long>();
  		for (final long item : array2) {
  			list2.add(item);
  		}
  		list1.retainAll(list2);
  		return fromList(list1);
  	}
  
  	public static void mergeArray(final Object[] dest, final Object[]... arrays) {
  		if (arrays == null || arrays.length == 0) return;
  		if (arrays.length == 1) {
  			final Object[] array = arrays[0];
  			System.arraycopy(array, 0, dest, 0, array.length);
  			return;
  		}
  		for (int i = 0, j = arrays.length - 1; i < j; i++) {
  			final Object[] array1 = arrays[i], array2 = arrays[i + 1];
  			System.arraycopy(array1, 0, dest, 0, array1.length);
  			System.arraycopy(array2, 0, dest, array1.length, array2.length);
  		}
  	}
  
  	public static String mergeArrayToString(final String[] array) {
  		if (array == null) return null;
  		final StringBuilder builder = new StringBuilder();
  		for (final String c : array) {
  			builder.append(c);
  		}
  		return builder.toString();
  	}
  
  	public static long min(final long[] array) {
  		if (array == null || array.length == 0) throw new IllegalArgumentException();
  		long min = array[0];
  		for (int i = 1, j = array.length; i < j; i++) {
  			if (min > array[i]) {
  				min = array[i];
  			}
  		}
  		return min;
  	}
  
  	public static long[] parseLongArray(final String string, final char token) {
  		if (string == null) return new long[0];
  		final String[] items_string_array = string.split(String.valueOf(token));
  		final ArrayList<Long> items_list = new ArrayList<Long>();
  		for (final String id_string : items_string_array) {
  			try {
  				items_list.add(Long.parseLong(id_string));
  			} catch (final NumberFormatException e) {
  				// Ignore.
  			}
  		}
  		final int list_size = items_list.size();
  		final long[] array = new long[list_size];
  		for (int i = 0; i < list_size; i++) {
  			array[i] = items_list.get(i);
  		}
  		return array;
  	}
  
  	public static long[] subArray(final long[] array, final int start, final int end) {
  		final int length = end - start;
  		if (length < 0) throw new IllegalArgumentException();
  		final long[] result = new long[length];
  		System.arraycopy(array, start, result, 0, length);
  		return result;
  	}
  
  	public static Object[] subArray(final Object[] array, final int start, final int end) {
  		final int length = end - start;
  		if (length < 0) throw new IllegalArgumentException();
  		final Object[] result = new Object[length];
  		System.arraycopy(array, start, result, 0, length);
  		return result;
  	}
  
  	public static String[] subArray(final String[] array, final int start, final int end) {
  		final int length = end - start;
  		if (length < 0) throw new IllegalArgumentException();
  		final String[] result = new String[length];
  		System.arraycopy(array, start, result, 0, length);
  		return result;
  	}
  
  	public static String toString(final long[] array, final char token, final boolean include_space) {
  		final StringBuilder builder = new StringBuilder();
  		final int length = array.length;
  		for (int i = 0; i < length; i++) {
  			final String id_string = String.valueOf(array[i]);
  			if (id_string != null) {
  				if (i > 0) {
  					builder.append(include_space ? token + " " : token);
  				}
  				builder.append(id_string);
  			}
  		}
  		return builder.toString();
  	}
  
  	public static String toString(final Object[] array, final char token, final boolean include_space) {
  		final StringBuilder builder = new StringBuilder();
  		final int length = array.length;
  		for (int i = 0; i < length; i++) {
  			final String id_string = String.valueOf(array[i]);
  			if (id_string != null) {
  				if (i > 0) {
  					builder.append(include_space ? token + " " : token);
  				}
  				builder.append(id_string);
  			}
  		}
  		return builder.toString();
  	}
  
  	public static String[] toStringArray(final Object[] array) {
  		if (array == null) return null;
  		final int length = array.length;
  		final String[] string_array = new String[length];
  		for (int i = 0; i < length; i++) {
  			string_array[i] = ParseUtils.parseString(array[i]);
  		}
  		return string_array;
  	}
  
  	public static String[] toStringArray(final String s) {
  