sorting data in txt file

[cassysumandak]

Hi,

I've data in txt file with these format:

UserID:1
January 20points
Dec 30points
March 10 points
February 10point
UserID:2
Feb 10 points
Dec 10points
Nov 20points

How can I sort (ascending)this data with this format:
UserID:1
January 20points
February 10point
March 10 points
Dec 30points
UserID:2
Feb 10 points
Nov 20points
Dec 10points

I have tried using the collection.sort but it sort my data in a long line.

[Fubarable]

One way is to create an array of String that holds your month Strings in order, then store your user data in an ArrayList of a class that hold a month string and the corresponding point. Have this class implement Comparable and in the compareTo method use the String order in the month String array to determine whether one month is higher than the next. Then you can use Collections.sort(...) to sort your array list.