For learning

Online Monitoring System

2008-06-17T09:01:00.000-07:00

My final project for uni has finally be completed.
Based on Java Media Framework and with the purpose of building a cheap and easy use monitoring sytem. After several months coding, it has finally been done. Even though, I still have further plan to make OMS work more professional and optimize its functions.
I will upload OMS site in the future when I have more passion to develop it.
Anyways mission is completed on June 3 rd.
And along with its completion, my university life is over.

Java Socket programming practice

2008-06-03T08:43:00.000-07:00

This was another assignment I have done around 1 year ago.
Its main objective is to get us to practice java socket programming.
Forgive me for its non-GUI interface, it is a auction system in java, where users' information and items' information are read from Files.

Below is the demonstration capture:

Java Calculator

2008-05-20T19:06:00.000-07:00

This is definitely the ugliest calculator ever.

I was just starting learning Java when I did this program.

It is consisting of simple java buttons with images and a panel to display results.

By that time, we were mainly practising Object Oritented Programming.

So this program is GUI and Arithmetical Functions are separated classes.

and it is a good and trouble thing about java.

Tic-Tac-Toe (C++)

2008-05-14T18:37:00.000-07:00

This is an assignment task a few months ago.
It is a console tic-tac-toe game , in which computer will be the opponent.
It is done in c++ .

Mary's Lamb

2008-04-27T07:27:00.000-07:00

This java program's name is "Mary's Lamb".
Mary is a worker who needs to know everyday's weather before she goes to work.
Lamb is weather information.

Mary's Lamb retrieves weather information from a web service site and display on its panel.
This is a simple program,but I think this kinda of program is useful for our daily life..
At least good for Mary.

GUI for VS

2008-04-12T00:58:00.000-07:00

This is the ugly interface of the voting system.

One student pointed out that the there is a rectangle on the button after clicking, which leaves a hint of previous vote. It is a good point, I think we could recovery this by putting a image on the button. I believe many other solutions are there. May add more methods later.

Linked List + Dynamic Array = Linear Hashing

2008-04-06T09:40:00.000-07:00

Recently, regarding to an assignment.

I built a linear hashing program in C++ which takes a serial of numbers,the bucket size and the initial size of the array.And It will put all numbers into the proper bucket based on linear hashing algorithm.

I had a good time while building this program, because I had a chance to practise how to use Linked List and Dynamic Array properly. and I found out something needed to be noticed and becareful with these two structure. because in C++, they are all implemented by point. so I always have to take care of that , and delete them after using.

It is a good program though, because I save a lot of time when next I need to do linear hashing calculation.hehehe...

I will upload this program soon after I submit it.

PS:9th , April: This is the prototype of inserting one record of linear hasing algorithm:

JCU IEEE president 2008 voting system

2008-03-28T11:40:00.001-07:00

Today I was doing a voting system, for this IEEE president election in JCU singapore.
Actually I am not very familiar with Java Swing programming, so by this chance, I have done some reading of Swing.
Basically, GUI for an application is just a skin, never be the core. but I have to say it is also very time consuming for GUI programming. for this voting system, I spent more time on GUI than the actual voting algorithm.
At the end, I found what was really annoying me is the layout manager, in order to make my desired layout of all my elements, I have tried all kind of layout managers, such as FlowLayout,GridLayout,BoxLayout and so on. Luckily finally I made my elements there..hehehe, so for GUI programming, what is really important is how much experience of the Classes you have known. . .

I will upload the ugly picture of the Voting System once I have completed. . .
I have to say, I am really bad on designing..heheheh

JMF progress

2008-03-26T10:01:00.000-07:00

I started this JMF project 4 weeks ago.
Basically, it is about remote controlling webcam.
The first thing I am doing now is to implement the transmitting of the vedio from one PC to another.
It is always difficult to do one thing at the begining stage.

The first problem I encountered was that the video did not show where there was no error in the program itself at all. At the end, I figured it out, the reason was that I did not add visual components to the class I created.
the significant code was
"this.add(player.getVisualComponent());
this.add(player.getControlPanelComponent());
"

The second problem I encountered was that the video I transimitted from the server can not be displayed in client side. Actually I was testing this in my local machine, (since I have only one PC), it was sloved at the end, the reason was that in client side, I did not initialize the local address probably, the significant code was:
"SessionAddress localaddr = new SessionAddress(InetAddress.getLocalHost(),3000);"
where you can see "InetAddress.getLocalHost()".
then I did "mymgr.initialize(localaddr);"

Now there are still a lot of errors waiting for me to slove,
but at least I get started, and it was working in the sense of transimitting. cheers.

And Hope my little experience would help ppl who are working on similar projects.

First Article

2008-03-23T03:26:00.000-07:00

After a long time of being away from blog, I finally decided to make a own blog for my technical articles , or I will say some thoughts in Information Technology area.
I am currently studying IT in James Cook University Sinapore , and graduating on June. Since my IT major is General Computing, there is no forcused area in terms of studying. but persoanlly I am more interested in Programming, and have done some freelance work related to web programming.
I wish I could make some friends who have something in common through this blog. so we can share our thoughts , comments in IT field.