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Data Structures

 
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Data Structures, Data Structures and Algorithms
rageeb
8 Oct, 2007 - 11:30 AM
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Hi I am creating a project in Java using "Data Structures". I have created two classes called ClassID and ClassRecord. ClassID holds transaction information of a access control system (for personnel exiting and entering a secure door) while the ClassRecord allow transaction items to be added into a *.txt file(flat file) as well as to search , print items based on staff 's last name or ID number.

I am able to create a text file containing list of information ......the out put looks like this

Jones (surname)
5456 (ID number)
20 (access control number)
0902 (time of transaction)
1 (entering(1)/exiting(0))
Scott
1539
18
0920
0


My question is how can i read those information into a LinkList and sort the access control transactions by the amount of time,name,and ID number the personnal stayed inside secure premise.

Please any help appreciated.
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malqa053
RE: Data Structures
8 Oct, 2007 - 07:14 PM
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Well, I'm not sure bout the main problem. However, those kind of stuff could be done by doing the following :

1- make a class that has the ( surename, ID, access number.....) as attributes; if you don't have it yet.

2- on the main class or wherever you read from the file, after reading the info. you store them on a variable of the class type you did in 1.

3- then, add a new Node on a linkedList and store the variable you made in 2 as the Data for this node.

Hopefully that helps,,,
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rageeb
RE: Data Structures
9 Oct, 2007 - 01:43 AM
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QUOTE(malqa053 @ 8 Oct, 2007 - 08:14 PM) *

Well, I'm not sure bout the main problem. However, those kind of stuff could be done by doing the following :

1- make a class that has the ( surename, ID, access number.....) as attributes; if you don't have it yet.

2- on the main class or wherever you read from the file, after reading the info. you store them on a variable of the class type you did in 1.

3- then, add a new Node on a linkedList and store the variable you made in 2 as the Data for this node.

Hopefully that helps,,,




Okay, I got the picture..........well let me try that pseudo in code ,thanks a lot
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