java读取文件夹文件并排序

class SortFile {public  long size;  public  long date;  public  String name;  public SortFile(String name, long date, long size) {    this.name = name;    this.date = date;     this.size = size;  }public static SortFile[] sort(SortFile[] src, String mark, boolean rule) {   if (rule) {//升序 for (int i = src.length; i > 1; i--) {   for (int j = 0; j < i - 1; j++) {     boolean change = false;        if (mark.equals("name")) {        if (src[j].name.compareTo(src[j + 1].name) > 0)  {  change = true;         } }else if (mark.equals("date")) {  if (src[j].date  > src[j + 1].date) {       change = true;         } }else {           if (src[j].size > src[j + 1].size)  {   change = true;            }}              if (change) {           SortFile temp = src[j];  src[j] = src[j + 1];      src[j + 1] = temp;       }              }         } }else {    //降序  for (int i = src.length; i > 1; i--) {   for (int j = 0; j < i - 1; j++) {     boolean change = false;        if (mark.equals("name")) {        if (src[j].name.compareTo(src[j + 1].name) < 0)  {  change = true;         } }else if (mark.equals("date")) {  if (src[j].date  < src[j + 1].date) {       change = true;         } }else {           if (src[j].size < src[j + 1].size)  {   change = true;            }}              if (change) {           SortFile temp = src[j];  src[j] = src[j + 1];      src[j + 1] = temp;       }              }         }      }      return src;    }

//获得文件列表ArrayList al = new ArrayList();File f = new File("E:\\test");String[] names = f.list();for (int i = 0; i < names.length; i++) { File fs = new File(f, names[i]);SortFile sf = new SortFile(names[i],fs.lastModified(), fs.length()); al.add(sf);}//转换成数组SortFile[] sfSrc = new SortFile[al.size()];for(int i=0;i<al.size();i++){sfSrc[i] = (SortFile) al.get(i);System.out.println(sfSrc[i].name+"   "+sfSrc[i].size+"     "+sfSrc[i].date);}//按 date ,name ,size 排序SortFile[] forName = SortFile.sort(sfSrc,"date",true);//true为升序 ，false为降序for(int i=0;i<forName.length;i++){System.out.println(forName[i].name+"    "+forName[i].size+"    "+forName[i].date);}