直接获取File的最新修改的时间值，然后做个比较。
List<File> asList = Arrays.asList(new File(PathHelper.PATH_PROJECT_PIC)
.listFiles());
Collections.reverse(asList);
Integer[] a = { 1, 3, 5, 7, 9 };
Arrays.sort(a, new Comparator<Integer>() {
public int compare(Integer o1, Integer o2) {
return o2 - o1;
}
});
System.out.println(Arrays.toString(a));
String[] a={"5","6","7","9","4","1","2"};
Arrays.sort(a, new Comparator<String>() {
public int compare(String o1, String o2) {
return o2.charAt(0)-o1.charAt(0);
}
});
System.out.println(Arrays.toString(a));
String[] a={"5","6","7","9","4","1","2"};
Arrays.sort(a, new Comparator<String>() {
public int compare(String o1, String o2) {
return o2.charAt(0)-o1.charAt(0);
}
});
System.out.println(Arrays.toString(a));
有任何疑问或技术合作都可联系我
微信：yanfahezuo 【推荐】
QQ：596957738
加我微信
