"Java物件導向程式設計" & "網際網路應用系統設計"修課所使用之blog

星期一, 5月 30, 2005

5/23網際網路應用系統設計作業九 電子三乙 9126218 羅文偉

這次的作業→成品

星期一, 5月 23, 2005

5/16網際網路應用系統設計作業八 電子三乙 9126218 羅文偉

3.電腦硬體頻頻的升級會過度增加企業的營運成本,以Web為基礎的應用程式系統可否減低這種成本?why?
ans:可以,可將應用程式置於伺服器端,讓使用者直接連接伺服器存取、運算資料,再回傳給使用者端,而要更新系統時只需要在伺服器端執行,且使用者端之硬體能力需求也不用太高

4.瀏覽器支援Java,Html,JavaScript,ActiveX Control,以及各式Plug-in,這些工具分別適合用來做哪些應用?
ans:
Java→Java 程式語言的可攜性及跨平台的特性,對於發展網際網路個人化應用技術而言,有著強大的支援性
Html:只要我們將文件存成HTML格式,不必擔心在別人的電腦上無法閱讀,編寫也非常容易, 以靜態網頁為主應用
JavaSript:由於JavaScript並不具備Server跟Client端雙向溝通的能力.故多用來處理使用者端的事情.例如:pre-Processing & post-Processing
ActiveX Control:可以在Internet上執行各種的應用軟體, 而在此同時保留原有的各項投資, 如應用軟體、各項工具、知識和既有的規則

星期一, 5月 16, 2005

HELLO是好物~還有好用的firefox擴充套件!

hello真是個好用的軟體~可以上傳圖片給blog~真好用~
hello的載點

讓firefox更強的套件
firefox擴充套件載點

澳洲的黃金海岸!!!

Goldcoast in Australia!!~養老的好所在~

南波杏的照片


用hello放南波杏的照片~哈哈哈~ Posted by Hello

5/9網際網路應用系統設計作業七 電子三乙 9126218 羅文偉

1.秘密鑰匙系統有何優缺點?
ans:
優點:產生的速度跟加密解密都很快。
缺點:電腦運算能力增加,破解的機率也越高。

2.公開金鑰系統如何防止第三者竊取資料?
ans:
公開鑰匙系統會產生公開金鑰和私密金鑰,傳遞者先加密,讓大家使用公開金鑰,但只有擁有私密金鑰的人才有能力去解碼,所以沒有私密金鑰的人不能解碼,這樣就可以保密了。

星期一, 5月 09, 2005

5/2網際網路應用系統設計作業六 電子三乙 9126218 羅文偉

1.試解釋 Web 技術演進是要解決什麼樣的問題?

ANSWER:
第一時期到第二時期是為了解決資料更新的問題
第二時期到第三時期是為了解決使用者過多導致網站速度下降



2.以網站開發的角度來說,Script語言有什麼優勢?

ANSWER:
簡化了網路程式設計並提高程式開的效率



3.程序(Process)和執行緒(Thread)對網站性能有什麼不同的影響?

ANSWER:
程序:多一個使用者就會啟動一個新程序,而每個程序都有一個獨立的定址空間,使用者一多,耗費的系統資源也多
執行緖:使用常駐的服務,當需要另一個程式要求就再開啟另一個執行緖,而這些都共用一個位址空間,耗費的的系統資源就沒程序那麼多

星期一, 5月 02, 2005

4/25網際網路應用系統設計作業五 電子三乙 9126218 羅文偉

1. If Google Maps is available as web service,
propose at least five applications that can make use of this service.

answer:
(1)利用搜尋關鍵字找到目的地,省去許多時間用滑鼠拉地圖還找錯地方
(2)可作路徑規畫
(3)有照片可以參考目的地附近的情況
(4)可以當教學用
(5)配合GPS,使用上更便利


2. Due to the CYCU proxy, we didn't view the
final results of search returned in SOAP message as in Lab VIII.
Try this lab again in your place. Take a look at
the XML results of your search.

answer:例如搜尋dog
↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓
Microsoft Windows XP [版本 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\Administrator>cd
C:\>cd borland

C:\Borland>cd jbuilder2005

C:\Borland\JBuilder2005>cd jdk1.4

C:\Borland\JBuilder2005\jdk1.4>cd bin

C:\Borland\JBuilder2005\jdk1.4\bin>java -cp googleapi.jar com.google.soap.search
.GoogleAPIDemo ecy5LaRQFHIYmSvCTe7fb1h1aHOvshpD search dog
Parameters:
Client key = ecy5LaRQFHIYmSvCTe7fb1h1aHOvshpD
Directive = search
Args = dog
Google Search Results:
======================
{
TM = 0.074016
Q = "dog"
CT = ""
TT = ""
CATs =
{
{SE="", FVN="Top/Recreation/Pets/Dogs/Activities/Dog_Sledding"}
}
Start Index = 1
End Index = 10
Estimated Total Results Number = 13800000
Document Filtering = false
Estimate Correct = false
Rs =
{

[
URL = "http://www.dog.com/"
Title = "Dog.com: Discount Pet Supplies, Wholesale Dog Supply"
Snippet = "Gateway to dog.com web sites including DogSaver Screen Saver
, i-dog discussion
group, doginfo search engine, dogstore shopping,
and DogMail free e-mail."
Directory Category = {SE="", FVN="Top/Recreation/Pets/Dogs/Directories"}
Directory Title = "Dog.com"
Summary = "Gateway to dog.com web sites including DogSaver Screen Saver
, i-dog discussion
group, doginfo search engine, dogstore shopping,
and DogMail free e-mail."
Cached Size = "33k"
Related information present = true
Host Name = ""
],

[
URL = "http://www.dogbreedinfo.com/"
Title = "Dog Breed Information Center? Breeder Listing, Puppies, Dogs,
Dog ..."
Snippet = "Dog Breed Information Center? Breeder Listing, Puppies, Dogs
, Dog Breeders."
Directory Category = {SE="", FVN="Top/Recreation/Pets/Dogs/Breeds"}
Directory Title = "Dog Breed Information Center"
Summary = "Pictures, description, temperament, health problems and grooming in
formation for
all breeds. Search for breeds by size, need for exercise and
specific ..."
Cached Size = "25k"
Related information present = true
Host Name = ""
],

[
URL = "http://www.explodingdog.com/"
Title = "Exploding Dog"
Snippet = "Submit a title and artist Sam Brown will turn it into a funny and o
ffbeat stick figure."
Directory Category = {SE="", FVN="Top/Regional/North_America/United_States/Con
necticut/Localities/H/Hartford/Arts_and_Entertainment"}
Directory Title = "Exploding Dog"
Summary = "Submit a title and artist Sam Brown will turn it into a funny and o
ffbeat stick figure."
Cached Size = "15k"
Related information present = true
Host Name = ""
],

[
URL = "http://flipdog.monster.com/"
Title = "Flip Dog"
Snippet = "a free job search and job posting site for career seekers and emplo
yers.
View thousands of employment listings gathered directly from Employer
s' sites."
Directory Category = {SE="", FVN="Top/Business/Employment/Job_Search"}
Directory Title = "Flip Dog"
Summary = "a free job search and job posting site for career seekers and emplo
yers.
View thousands of employment listings gathered directly from Employer
s' sites."
Cached Size = "58k"
Related information present = true
Host Name = ""
],

[
URL = "http://www.dog-play.com/"
Title = "Dog-Play: Great activities you can do with your dog"
Snippet = "Offers some advice on how to train and entertain house dogs. Learn
about agility,
animal assisted activities, flyball, and pet visiting. A foc
us on dog ..."
Directory Category = {SE="", FVN="Top/Recreation/Pets/Dogs/Activities"}
Directory Title = "Dog-Play"
Summary = "Having fun with your dog. All dogs welcome, including mixed
breeds. Learn about
therapy dogs, pet facilitated therapy, animal assisted
activities, agility, ..."
Cached Size = "15k"
Related information present = true
Host Name = ""
],

[
URL = "http://www.i-love-dogs.com/"
Title = "Dog, Dogs, Canine Wonderland!"
Snippet = "Dog resources including email, web sites, chat, and other as
sociated information."
Directory Category = {SE="", FVN="Top/Recreation/Pets/Dogs"}
Directory Title = "I-Love-Dogs.com"
Summary = "Dog resources including email, web sites, chat, and other as
sociated information."
Cached Size = "26k"
Related information present = true
Host Name = ""
],

[
URL = "http://www.digitaldog.com/"
Title = "dogs - dog training - dog behavior - dog adoptio
n - Digital Dog"
Snippet = "Digitaldog offers dog training and breeding information, and
provides information
on adopting dogs from animal shelters."
Directory Category = {SE="", FVN="Top/Recreation/Pets/Dogs"}
Directory Title = "Digital Dog"
Summary = "Information about breeds, adopting a dog, understanding beha
vior, and stories."
Cached Size = "17k"
Related information present = true
Host Name = ""
],

[
URL = "http://www.sausage.com/"
Title = "HotDog Web Editors - HotDog Professional, HotDog PageWiz, HotDog .
..
"
Snippet = "HotDog Web Editors - HotDog Professional, HotDog PageWiz, HotDog Ju
nior and
SuperToolz - Created by Sausage Software."
Directory Category = {SE="", FVN=""}
Directory Title = ""
Summary = ""
Cached Size = "26k"
Related information present = true
Host Name = ""
],

[
URL = "http://www.sparky.org/"
Title = "Sparky the Fire Dog"
Snippet = "... The Great Sparky the Fire Dog. Fun with Fire Truc
ks, Ask Sparky, Sparky ...
Sparky and Sparky the Fire Dog are
registered trademarks of the NFPA. ..."
Directory Category = {SE="", FVN=""}
Directory Title = ""
Summary = ""
Cached Size = "5k"
Related information present = true
Host Name = ""
],

[
URL = "http://dogpile.com/"
Title = "Dogpile Web Search Home Page"
Snippet = "Dogpile.com makes searching the Web easy, because it has all the be
st search
engines piled into one. So you get better results from more of th
e web."
Directory Category = {SE="", FVN=""}
Directory Title = ""
Summary = ""
Cached Size = "19k"
Related information present = true
Host Name = ""
]
}
}

C:\Borland\JBuilder2005\jdk1.4\bin>