Coverage Report

Coverage Report - org.jtheque.utils.collections.ArrayUtils

Classes in this File

Line Coverage

Branch Coverage

Complexity

ArrayUtils

92%

26/28

93%

15/16

2.833

 package org.jtheque.utils.collections;
 
 import java.util.Arrays;
 
 /*
  * This file is part of JTheque.
  *
  * JTheque 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.
  *
  * JTheque 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 JTheque.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /**
  * This class provide utility methods to the use of arrays.
  *
  * @author Baptiste Wicht
  */
 public final class ArrayUtils {
     public static final Object[] ZERO_LENGTH_ARRAY = new Object[0];
 
     /**
      * Construct a new <code>ArrayUtils</code>. The constructor is private, all methods are static.
      */
     private ArrayUtils() {
         super();
     }
 
     /**
      * Inverse the order of the array and return it.
      *
      * @param array The array to inverse.
      */
     public static void reverse(Object[] array) {
         int len = array.length;
         int hlen = len / 2;
 
         for (int i = 0; i < hlen; ++i) {
             Object temp = array[i];
             array[i] = array[len - 1 - i];
             array[len - 1 - i] = temp;
         }
     }
 
     /**
      * Return the index of the object on the tab.
      *
      * @param object The object to search  for.
      * @param tab    The tab to search in.
      * @return The index of the objet in the tab else -1 if the object is not present in the tab.
      */
     public static int indexOf(Object object, Object[] tab) {
         for (int i = 0; i < tab.length; i++) {
             if (tab[i] == object) {
                 return i;
             }
         }
 
         return -1;
     }
 
     /**
      * Reverse the array.
      *
      * @param array The array to reverse.
      */
     public static void reverse(int[] array) {
         int len = array.length;
         int hlen = len / 2;
 
         for (int i = 0; i < hlen; ++i) {
             int temp = array[i];
             array[i] = array[len - 1 - i];
             array[len - 1 - i] = temp;
         }
     }
 
     /**
      * Test if the array is empty or contains only <code>null</code> values.
      *
      * @param array The array to test.
      * @return true if the array size is 0 or if the array contains only <code>null</code> values.
      */
     public static boolean isEmpty(Object[] array) {
         if(array == null || array.length <= 0){
             return true;
         }
         
         for(Object o : array){
             if(o != null){
                 return false;
             }
         }
         
         return true;
     }
 
     /**
      * Return a copy of the array.
      *
      * @param array The array to copy.
      * @param <T>   The type of objects.
      * @return The copy of the array.
      */
     public static <T> T[] copyOf(T[] array) {
         return Arrays.copyOf(array, array.length);
     }
 }

1		package org.jtheque.utils.collections;
2
3		import java.util.Arrays;
4
5		/*
6		* This file is part of JTheque.
7		*
8		* JTheque is free software: you can redistribute it and/or modify
9		* it under the terms of the GNU General Public License as published by
10		* the Free Software Foundation, either version 3 of the License.
11		*
12		* JTheque is distributed in the hope that it will be useful,
13		* but WITHOUT ANY WARRANTY; without even the implied warranty of
14		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15		* GNU General Public License for more details.
16		*
17		* You should have received a copy of the GNU General Public License
18		* along with JTheque. If not, see <http://www.gnu.org/licenses/>.
19		*/
20
21		/**
22		* This class provide utility methods to the use of arrays.
23		*
24		* @author Baptiste Wicht
25		*/
26		public final class ArrayUtils {
27	2	public static final Object[] ZERO_LENGTH_ARRAY = new Object[0];
28
29		/**
30		* Construct a new <code>ArrayUtils</code>. The constructor is private, all methods are static.
31		*/
32		private ArrayUtils() {
33	0	super();
34	0	}
35
36		/**
37		* Inverse the order of the array and return it.
38		*
39		* @param array The array to inverse.
40		*/
41		public static void reverse(Object[] array) {
42	2	int len = array.length;
43	2	int hlen = len / 2;
44
45	6	for (int i = 0; i < hlen; ++i) {
46	4	Object temp = array[i];
47	4	array[i] = array[len - 1 - i];
48	4	array[len - 1 - i] = temp;
49		}
50	2	}
51
52		/**
53		* Return the index of the object on the tab.
54		*
55		* @param object The object to search for.
56		* @param tab The tab to search in.
57		* @return The index of the objet in the tab else -1 if the object is not present in the tab.
58		*/
59		public static int indexOf(Object object, Object[] tab) {
60	32	for (int i = 0; i < tab.length; i++) {
61	28	if (tab[i] == object) {
62	4	return i;
63		}
64		}
65
66	4	return -1;
67		}
68
69		/**
70		* Reverse the array.
71		*
72		* @param array The array to reverse.
73		*/
74		public static void reverse(int[] array) {
75	2	int len = array.length;
76	2	int hlen = len / 2;
77
78	8	for (int i = 0; i < hlen; ++i) {
79	6	int temp = array[i];
80	6	array[i] = array[len - 1 - i];
81	6	array[len - 1 - i] = temp;
82		}
83	2	}
84
85		/**
86		* Test if the array is empty or contains only <code>null</code> values.
87		*
88		* @param array The array to test.
89		* @return true if the array size is 0 or if the array contains only <code>null</code> values.
90		*/
91		public static boolean isEmpty(Object[] array) {
92	6	if(array == null \|\| array.length <= 0){
93	2	return true;
94		}
95
96	6	for(Object o : array){
97	4	if(o != null){
98	2	return false;
99		}
100		}
101
102	2	return true;
103		}
104
105		/**
106		* Return a copy of the array.
107		*
108		* @param array The array to copy.
109		* @param <T> The type of objects.
110		* @return The copy of the array.
111		*/
112		public static <T> T[] copyOf(T[] array) {
113	2	return Arrays.copyOf(array, array.length);
114		}
115		}