//靜態初始化
int array[] = { 1, 2, 3, 4 };

//動態初始化
int array[] = new int[3];

//陣列長度
int length = array.length;

//獲取二維中第一維的長度
int length2 = array[0].length;

//遍歷
int[] array = new int[] { 1, 2, 3 };
for (int i : array) {
    System.out.println(i);
}

//排序
int[] array = { 3, 2, 1, 4, 5 };
Arrays.sort(array);

//輸出
int[] array = { 1, 2, 3 };
System.out.println(Arrays.toString(array));

//陣列轉list
String[] array = { "a", "b", "c", "d", "e" };
List<String> list = new ArrayList<String>(Arrays.asList(array));

//陣列轉set
String[] array = { "a", "b", "c", "d", "e" };
Set<String> set = new HashSet<String>(Arrays.asList(array));

//list轉陣列
List<String> list = new ArrayList<String>();
list.add("a");
list.add("b");
list.add("c");
String[] array = new String[list.size()];
list.toArray(array);
for (String s : array)
    System.out.println(s);

//陣列是否包含某值
String[] array = { "a", "b", "c", "d", "e" };
boolean b = Arrays.asList(array).contains("a");
System.out.println(b);

//數組合並
int[] array = org.apache.commons.lang.ArrayUtils.addAll(array1, array2);

//反轉
org.apache.commons.lang.ArrayUtils.reverse(array);

//移除

int[] removed = org.apache.commons.lang.ArrayUtils.removeElement(array, 3);

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