ArrayUtils

Posted 2020-08-24

 1 package template;
 2 
 3 import org.apache.commons.lang3.ArrayUtils;
 4 import org.apache.commons.logging.Log;
 5 import org.apache.commons.logging.LogFactory;
 6 
 7 /**
 8  * Created by wangcong on 2016/7/29.
 9  */
10 public class ArrayUtilsTemplate {
11     private final static Log LOG = LogFactory.getLog(ArrayUtilsTemplate.class);
12 
13     public static void main(String[] args) {
14         Integer[] array = {1,2,3,4};
15         boolean isEmpty = ArrayUtils.isEmpty(array);
16         LOG.info(isEmpty);
17 
18         boolean contains = ArrayUtils.contains(array,2);
19         LOG.info(contains);
20 
21         Integer[] clone = ArrayUtils.clone(array);
22         LOG.info(ArrayUtils.toString(clone));
23 
24         Integer[] add = ArrayUtils.add(array,5);
25         LOG.info(ArrayUtils.toString(add));
26 
27         Integer[] array2 = {5,6};
28         Integer[] addAll = ArrayUtils.addAll(add,array2);
29         LOG.info(ArrayUtils.toString(addAll));
30 
31         Integer[] subArray = ArrayUtils.subarray(addAll,2,6);
32         LOG.info(ArrayUtils.toString(subArray));
33 
34         int indexOf = ArrayUtils.indexOf(addAll,5);
35         LOG.info(indexOf);
36 
37         //转化成基础类型
38         int[] toPrimitive = ArrayUtils.toPrimitive(addAll);
39         LOG.info(ArrayUtils.toString(toPrimitive));
40 
41         //基础类型转换成对象
42         Integer[] toObject = ArrayUtils.toObject(toPrimitive);
43         LOG.info(ArrayUtils.toString(toObject));
44 
45         ArrayUtils.reverse(addAll);
46         LOG.info(ArrayUtils.toString(addAll));
47 
48         int length = ArrayUtils.getLength(addAll);
49         LOG.info(length);
50 
51         String[] toArray = ArrayUtils.toArray("1","2","3");
52         LOG.info(ArrayUtils.toString(toArray));
53 
54     }
55 
56 }