My favorite band is always Queen. Three years ago, I was thrilled to known that The band's guitarist, Brian May, just got his PhD in astrophysics two weeks after my graduation procedure is filed. At that time, I can't contemplate how it was to be a rock star and to holds scientific PhD at the same time.

Today, after reading 7 of the Smartest Rock Stars Ever, I am more amazed to learn that Greg Graffin, the lead vocalist of "Bad Religion" holds PhD in Zoology and have been a lecturer for years. He teaches at Cornell this semester. I have not had a chance to listen to "Bad Religion". Maybe I could grab their latest album somewhere soon.

apt-get install ruby ruby-dev gem install passenger

I have been using Launchy for a long time. It is a very good keystroke launcher, a best tool for keyboard fanatic. However, it takes too much ram on my Win7 machine and keeps crashing constantly. After googling a while, I found [FARR]("The Ultimate Program for Keyboard Maniacs") (Find and Run Robot), a highly configurable, full-featured keystroke launcher which brands itself as "The Ultimate Program for Keyboard Maniacs". This one is less eye-candy than Launchy but definitely a tool for a fanatic. It sports regular expression matching with customizable scoring. Best of all, it takes only a minimal amount of ram.

Try it.

The ghost from the past is my MySQL database encoded in tis620. Worse, the table and the column itself is labelled as iso-8859-1. Of course, if the web page is to be "viewed" as tis620, all I must to is to simply use

SET NAMES tis620;
SET CHARACTER SET tis620;

In my php code. However, this is not the case because the page itself is utf8.

What comes to help me is iconv. In short, this is what I did.

db_query(\"SET CHARACTER SET latin1\");
$query = \"SELECT * FROM table1
$result =  db_query($query);
$number_of_rows = $result->rowCount();
foreach ($result as $record) {
    printf iconv(\"ISO-8859-11\", \"UTF-8\", $record->comment)
echo '</tr>'.\"\\n\";
}
db_query(\"SET CHARACTER SET utf8\");

check it here. Basically, we just need to add a repository of ATI in YaST.

You must create a class ArrayCollectionByList from this stub.

You are not allow to declare any additional member, i.e., you cannot declare [code]public int size[/code] nor [code lang="java"]public Object [] elementData[/code], you have to do everything via col only

[code lang="java"] public class ArrayCollectionByList implements Collection { private ArrayCollection col;

public ArrayCollectionByList (int c) { //fill your code here } public int size() { //fill your code here } public boolean isEmpty() { //fill your code here } public boolean contains(Object e) { //fill your code here } public void remove(Object e) { //fill your code here } public void add(Object e) { //fill your code here } public Object[] toArray() { //fill your code here } } [/code]

#0 size = 0 , elementData = 
#1 size = 4 , elementData = BANGKOK,PHUKET,BANGKOK,SONGKLA
#2 size = 3 , elementData = BANGKOK,SONGKLA,BANGKOK
#3 size = 6 , elementData = BANGKOK,SONGKLA,BANGKOK,CHIANG MAI,CHIANG RAI,CHIANG MAI
#4 size = 5 , elementData = BANGKOK,SONGKLA,BANGKOK,CHIANG MAI,CHIANG RAI
#5 size = 9 , elementData = BANGKOK,SONGKLA,BANGKOK,CHIANG MAI,CHIANG RAI,LOEI,TAK,PATTAYA,TAK

For each comment line in the form // #0, answer the value of size and elementData. For example, your answer should be

#0 size = 0, elementData =
#1 size = 4, elementData = BANGKOK,PHUKET,BANGKOK,SONGLKA

Please send answer as Email to [email protected] subject: [data] Quiz00 ID include a file named Quiz00_ID.txt

[code lang="java"] public class Main { public static void main(String[] args) { Collection c = new ArrayCollection(10); System.out.println(c.isEmpty()); // #0 (size ==? element data == c.add("BANGKOK"); c.add("PHUKET"); c.add("BANGKOK"); c.add("SONGKLA");
// #1 System.out.println(c.size());

    c.remove(\"PHUKET\");                
    // #2
    c.add(\"CHIANG MAI\");                
    c.add(\"CHIANG RAI\");                
    c.add(\"CHIANG MAI\");                
    // #3
    c.remove(\"CHIANG MAI\");                
    // #4
    c.add(\"LOEI\");                
    c.add(\"TAK\");             
    c.add(\"PATTAYA\");             
    c.add(\"TAK\");             
    // #5
    
    System.out.println(c.contains(\"PHUKET\"));
    System.out.println(c.contains(\"BANGKOK\"));
}

} [/code]

The solution is here

This is a basic version of ArrayCollection

[code lang="java"] /*

• โครงสร้างข้อมูล : ฉบับวาจาวา
• http://www.cp.eng.chula.ac.th/~somchai/books */ package dataStructures;

/**

• คลาสที่สร้างคอลเล็กชันด้วยอาเรย์
• @author สมชาย ประสิทธิ์จูตระกูล */ public class ArrayCollection implements Collection { private Object[] elementData; private int size;

public ArrayCollection(int c) { elementData = new Object[c]; size = 0; }

public int size() { return size; }

public boolean isEmpty() { return size == 0; }

private int indexOf(Object e) { for (int i=0; i<size; i++) if (elementData[i].equals(e)) return i; return -1; }

public boolean contains(Object e) { return indexOf(e) != -1; }

public void remove(Object e) { int i = indexOf(e); if (i != -1) { size--; elementData[i] = elementData[size]; elementData[size] = null; } }

public void add(Object e) { elementData[size] = e; size++; }

} [/code]

#News

• Link to Azolla simulator http://sites.google.com/site/auraliusproject/lua-based-2d-robot-simulator
• Motion planning demo http://www.nattee.net/files-dae/motione1.zip.
• Forward Kinematics Homework here. Put your code in method drawArm(), you can use drawTube() to draw arm length.
• On Jan 26, there won't be midterm exam. (But we have a class as usual)
• Final at 19th floor. 1630 - 1930. Open book. see ya.

#Slides & Readings

1. Robot Control slide | reading
2. Motion Planning slide | reading
3. Motion Planning slide | reading
4. Sensor & Sensing slide | reading
5. Kinematics (forward kinematics) slide | reading
6. Probability slide | reading
7. Kalman & Particle Filter slide #1 slide #2| reading