# 12/18Lab
###### tags: `JAVA`

Set set =new TreeSet(new Comparator() {

@Override
public int compare(Object o1, Object o2) {
File emp1 =(File)o1;
File emp2 =(File)o2;
if(emp1.length()<emp2.length())
{
return -1;

}else if (emp1.length()>emp2.length()) {
return 1;
}else{
return 0;
}
}

});

File[] filessFiles=dir.listFiles();
long s=0;
for (File file2 : filessFiles) {
if(!file2.isDirectory())
{
s=file2.length();
set.add(file2);
System.out.println(file2.getName()+s);
System.out.println(s);

}

}
for (Object file2 : set) {

System.out.println(file2);
}