Urgent. Please Help.

Hi.

I need to write a program to sort data from .dat file. The following is how the data in the file looks like:

5
7
2
13
11

It is required to pass each above as an object to a "SortItem"method, such like:

public void SortItem (Object o) {

// Use linked list and compareTo to sort the object.

}

The object is successfully passed, but the main problem is that I don't know how to use linked list to sort it. Would you show me
how to do it? Or give me an example?

Thanks a lot!!!

java.util.Collections.sort(List list [, Comparator c]);

Sorts the list in ascending order, either with natural ordering (<) or via the Comparator object.

Usage:

Code:

---

import java.util.*;
// ...

List l = new LinkedList();
int i = readFromFile();
l.add(i);
// repeat until file is completly read
Collections.sort(l);
// l is now sorted. Given the input in your
// post it would now contain (2,5,7,11,13)

---