数组排序
int[] intArray = new int[] {4, 1, 3, -23};Arrays.sort(intArray);
// [-23, 1, 3, 4]
String[] strArray = new String[] {"z", "a", "C"};
Arrays.sort(strArray);
//
// Case-insensitive sort
Arrays.sort(strArray, String.CASE_INSENSITIVE_ORDER);
//
// Reverse-order sort
Arrays.sort(strArray, Collections.reverseOrder());
//
// Case-insensitive reverse-order sort
Arrays.sort(strArray, String.CASE_INSENSITIVE_ORDER);
Collections.reverse(Arrays.asList(strArray));
//
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