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谁会JAVA编程

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发表于 2007-5-9 13:27:08 | 显示全部楼层 |阅读模式
救急: I4 \0 ~( @! I% O7 S 7 c' `6 J- a' N0 R) i# m. T
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 楼主| 发表于 2007-5-9 13:57:40 | 显示全部楼层
没人懂吗?
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发表于 2007-5-9 13:58:19 | 显示全部楼层
偶懂一点点点
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 楼主| 发表于 2007-5-9 13:58:55 | 显示全部楼层
我在做作业啊...遇到不会的问下你..
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发表于 2007-5-9 14:00:01 | 显示全部楼层
还给老师了
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发表于 2007-5-9 14:00:25 | 显示全部楼层
我晕到,做JAVA的作业啊  ,你学啥子的
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 楼主| 发表于 2007-5-9 14:00:46 | 显示全部楼层
问下,如果有两个.java的文件,这两个文件有相似性...我们的要求是写一个另外的java程序,然后可以载如 这两个java文件,进行code的逐行对比,然后列出相似的行和相似内容,应该用什么类
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 楼主| 发表于 2007-5-9 14:01:11 | 显示全部楼层
//*********************************************************************$ V; s+ C- M7 r% s; }
//  ProgramCompare.java         Provided by: DRS  u2 X& [- {; Z! w
//9 R# [- r9 U7 H4 J) }  b  _
//  Program shell for Assignment 2- _' ^. G- ~, O- r* ^0 R/ V3 Q
//9 s* w' |0 K' i6 d+ w
//  Compares two text files line by line; o/ \  ], \2 e9 N- V1 j# g6 U' \
//*********************************************************************
; X3 ?9 o3 h8 K
- m5 r* r7 a% h& yimport java.io.*;
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. c" N! U% T6 c+ k, y) apublic class ProgramCompare
7 F# X+ {4 m- D0 I3 G) U" M{
( q4 p" `1 A* x        //-----------------------------------------------------------------) y0 h. z' q3 d8 v) i6 d' N
        // Constructor. x$ i6 G! f% ]' e9 K
        //-----------------------------------------------------------------
# [# p- t9 b& W* g/ q, i. o        public ProgramCompare()
$ i5 @+ i4 n1 V4 y) X        {
0 v' l3 _( ]9 Q2 R( v        }4 Y+ X" K- ]  a! r% j' j
& D  t. B2 i# R5 ]3 u6 i& Y% U
        //-----------------------------------------------------------------
" \$ l+ \* j+ H% i. g/ j/ K) m        // Method for testing that class has been reached
) Q! H* L# F) e1 Y* r* l  t& o        //-----------------------------------------------------------------        + u: s( o; _* g8 k3 o) J- j2 ~
$ Z" S0 }+ d+ q5 i" I
        public boolean ProgramCompareReached()        
8 ~. _6 h+ f0 F3 e6 k        {
/ x0 p3 ?2 `9 Y. H      try ( g( f; S$ ]2 @" x
   {         7 J9 I4 u9 }7 P( Y- @
                       
3 v$ I# Z3 U' L; l  Y                //********************************************************************
. z; S: ^3 @1 `# ^5 g$ A. _8 O                // Try-Catch Statement is used to handle exceptions - such as file not found
$ S& X/ i2 e8 ]* ?6 s9 g                // Reading the files will need to be placed inside a Try-Catch - just like this one!
2 A/ C+ b* {. m- N6 P6 g* l- w                // For more information see page 534 of the textbook; {7 k* t5 F9 ^6 h. t
                //********************************************************************
( B2 v7 Z# r: P7 F                     / h( ~: L* ?: _
        }
! r& I) F% g8 G  [9 u4 J             catch (Exception ex) // Exception caught here and message displayed to the screen
" m/ C/ U) s9 _! |4 F+ V          {
' ?$ J+ A9 F1 T* `+ e* d" o. N                    ex.printStackTrace (System.err);& `7 l: U8 q: c/ b' F5 i
           System.out.println ("Error message goes here"); // Replace this error message with your own         
" ?+ S7 T7 w+ [+ \: L& q/ t        }
+ x$ x; Q" j; P                return true;
7 q* U" F! }% F, ^) [  J2 `        }+ e: ~: r/ K  ~; y% o, g

* U' \# X  v) G  r. s- Z} // end of class ProgramCompare5 q2 y! P) T! l0 Q

9 x$ h2 z' U8 L2 Z: l//-----------------------------------------------------------------
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 楼主| 发表于 2007-5-9 14:01:41 | 显示全部楼层
//********************************************************************' D% G- j2 G/ {& O6 T  g* B- m! S
//  ProgramCompareMenu.java    Provided by: DRS- V5 f+ p, b" Q$ ?
//1 K9 a/ s6 v$ |3 b
//  Calls AuthorisedUsers.java and ProgramCompare.java0 V7 M6 t7 ~* T$ X/ [+ T7 [, C! R
//2 r3 `8 [! D, s
//  Driver shell for Assignment 2.
* Y% ?+ [6 K1 P! m: o//********************************************************************
, b) M& P8 O) i5 ], u/ u, P& f  @) S; g
class ProgramCompareMenu
  X! n: ^, ^- Y4 e8 [{9 V9 n! Q( _3 {! r$ v4 M. n
    public static void main (String[] args): n7 }7 a; N6 y! O$ g9 }+ u
            {
9 F# ^  {% x! _9 U; V. q                //Check that the two classes ProgramCompare and AuthorisedUsers are reachable$ j: i; t/ ^+ {9 X* X
                ProgramCompare reached1 = new ProgramCompare(); 8 }7 k* D( s  k0 g0 {( @, i' O5 q
                AuthorisedUsers reached2 = new AuthorisedUsers();       
$ F# c. [7 c" j  U4 \8 r                System.out.println("ProgramCompare reached? " + reached1.ProgramCompareReached());, A" S& ]' D3 w6 s# k" D1 j; d  l
                System.out.println("AuthorisedUsers reached? " + reached2.AuthorisedUsersReached());        % T0 i# H1 M  U4 |0 x. L
        }
% ]* A0 K, `- ^6 ?5 H1 B}// end of class ProgramCompareMenu& S! u% {) G, V  E2 l0 w" X

: P& a. ?1 Z( q//-----------------------------------------------------------------
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 楼主| 发表于 2007-5-9 14:01:55 | 显示全部楼层
//********************************************************************9 c1 r' Z( m5 p( ?" E9 q6 j7 s
//          AuthorisedUsers.java          Provided by: DRS5 h5 p. P3 l6 V& Y. r4 A
//               
9 g) n; X/ x5 H+ m//         Program shell for Assignment 2) \2 I+ U! X' B" Q/ W, Y# X, \
//9 T1 ], P% E  h! r0 i/ H
//         Represents facts about an AuthorisedUser/ ?8 \, w( }) h8 l
//********************************************************************  |/ u" j* k& i2 H4 D

/ V" o/ _2 M% ^3 }6 d/ spublic class AuthorisedUsers2 ^, Q$ k+ {4 |& C6 ~
    {
6 }6 M( x+ q. b5 C/ H2 D- U9 |0 B
0 Q2 y) w5 o) b. G& O7 V1 F5 t        //-----------------------------------------------------------------
$ {+ H7 q4 W! `. C. R        // Constructor0 W9 N' u0 D; ~( ~
        //-----------------------------------------------------------------
0 p( q7 f; H& }# q
3 Y# G; z. l7 D3 @# ^        public AuthorisedUsers()! K- R. H8 _3 u. X) S* F$ G' H
                {/ U3 E# l8 O4 w' m1 M6 R. |
                }( X) i& O# y+ j
: ?+ g& R9 v6 L0 N/ `
        //-----------------------------------------------------------------
0 P! o  s+ L% p8 }1 L        // Method for testing that class has been reached
& j! V5 I# h- v5 q$ W        //-----------------------------------------------------------------       
2 [1 q; }7 S2 {$ Q- J        public boolean AuthorisedUsersReached()
9 {! g" n. L9 z% {/ ~% M                {, a) n8 A, z( Y0 \  z8 j6 J' Y7 ^
                        return true;                        + D- w4 x$ I* V6 v: _
                }
6 k$ C) B6 D9 W' }. `) a! I                ) U/ h. @! g  s  l8 I- Q6 T
    } // end of class AuthorisedUsers+ H8 e2 P3 }& Z# q- V  t/ j& d
//-----------------------------------------------------------------
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 楼主| 发表于 2007-5-9 14:03:32 | 显示全部楼层
BSA104 Business Programming+ e; Z0 f! Q; F4 d; v
Shanghai - 2007- G1 n0 I6 ^7 a5 a  z0 x
Assignment 2- ^$ R: E5 \8 W1 s/ i' F% R5 q1 ?
Deadline for Submission: 10:00 pm (Shanghai time), Tuesday 15th May 2007 Assessment Weighting: 20% of the total assessment for BSA104 Assignment Type: Individual Scenario: The teaching staff at a nearby university are concerned that some of their students are submitting other students‟ work. They need a simple Java program that will compare the text of two other Java programs, line by line, for equality, and then print out the results, and a recommendation. Requirements: Consider the three Java Classes: ProgramCompareMenu.java, ProgramCompare.java and AuthorisedUsers.java, available from the Assignment 2 page on Vista. You are required to perform the following tasks: The ProgramCompareMenu class: (Total maximum 20 marks available); R$ M. n& _+ u5 F5 Q, x6 V
1. Provide a basic text-based menu interface to the ProgramCompare class so that it can be used by two staff members to determine if the two supplied Java programs are the same or similar.
% M: ?4 A" Z. F/ IThe staff must be able to:
6 x* q& w1 Q7 E7 | Log on to the „system‟ using their user name, and a Personal Identification Number (PIN) which is a four digit number **., D: S5 R9 @! T$ Y
1. The user should not be able to use the „system‟ until they have provided the correct user name and PIN combination. You should give them a second or third chance to get it right before shutting the „system‟ down." g" m! B& E/ K
 The interface should provide a menu so that the staff can:
5 |5 A/ B$ q  H. T4 i" pa) Enter the names of the two Java program files to be compared
, q! {- [/ `- K0 H, o3 Q For this assignment, it will be assumed that the two Java program files are in the same folder as your program.
: R% Q7 q- C1 f8 C% f5 h** You must use the two user names and PINs provided in your individual data available from the Assignment 2 page on Vista (see requirement 5 below). The user names and PINs should be included in your code, and the output to the screen should prompt the user with the user names and passwords (for marking purposes)./ D+ }/ |" ^8 c& I5 D
BSA104 Business Programming – 2007: Assignment 2) q4 T1 J. R: E
Page 2 of 58 u: X% ~, `/ \2 g3 x, F
b) Print out to the screen all the lines of code that are the same
. h! O+ q0 p4 h' ]5 x7 F, W+ W Include the name of the file and the line number of the code being printed for each of the two files( I& W: _) ^* V/ N
c) Print out to the screen all the available information regarding the evaluation of the two Java program files being compared$ D# D, L7 _6 W4 L* F
 the name, username and department of the user% y0 y& P: z5 g
 the statistics of the comparison
9 O! l( Q2 p; D! b6 Q) m- For example: the number of lines of code checked, the number of lines the same, the number of lines that are different
7 J" z' R6 O# w9 y+ m the recommendation for further checking
1 g0 F8 Y: B$ i5 i- For example: if more than 5 (five) lines of code are the same in each Java program file, then print a recommendation to the screen that the staff member check the files more closely" H+ ~# Y+ H+ K! T# ]6 r4 e
 the names of the two files compared
+ A. `) f0 }) k, _0 rd) Leave the program (exit)
  s+ A2 B" _7 Q# v$ nThe ProgramCompare class: (Total maximum 20 marks available)% f: ]# j1 ^2 Z9 K& F) Z2 w9 h
2. Provide a method/s to read in each line of code from the two files identified by the user: (assumed that the two Java program files are in the same folder as your program)+ U. ?7 Y8 v! s: d
a) provide an error message if the files are not found or there is a problem opening them
- S4 g( ~! }. H0 ~  q: h' T  Bb) compare each line of code7 c1 D& u7 I2 D$ ?: ]' u7 g0 W, W
c) print out the lines that are the same% |' ^/ W' l+ s5 L
d) count the number of lines compared / lines the same/ r. I+ n( }0 \" L& ^* h+ S. T
The AuthorisedUsers class: (Total maximum 20 marks available)
6 Q+ l, Z: }7 U0 f3. Provide an object that contains the name, username, PIN, and Department of the authorised users of the program (user names and PINs as provided in your individual data - see requirement 5 below)1 u( h3 J; I; {
4. Provide methods to:$ w0 B: K& h! E2 I! l7 S
a) compare the stored username and PIN with the one entered by the user - return a value that indicates whether they match or do not match
7 r0 G- U- {; i, v' E* h  L5 Ab) return the name of the authorised user
& B- v. ^' d" qc) return the name of the department of the authorised user0 [0 @5 m8 ]6 ~/ U
Individual Data (Maximum 20 marks available)
4 a' e, \" E. N, r, a, D/ D, G5. You will be given two staff member names, usernames, PINs, and department name, plus a set of two Java program files to compare using your program. You will need to log onto the BSA104 Assignment 2 page on Vista to generate your individual data and instructions for this requirement. You will need to use your University of Tasmania (UTas) student number.
, E! g0 e9 f2 [2 K7 jDocumentation (Maximum 10 marks available)$ j" J# W; n: s$ ~; _$ {& \
6. Your program files should be fully documented, at least to the same standard as demonstrated in the textbook. This includes in-code comments, descriptions, and where appropriate, explanations for each new constructor, method and variable.* \, K. Z6 K( Y. ?7 }" l
BSA104 Business Programming – 2007: Assignment 2
# |' m. m1 b/ l7 T# K% |6 FPage 3 of 5
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 楼主| 发表于 2007-5-9 14:03:53 | 显示全部楼层
上面是作业要求,然后前三个是给的java程序,要求自己修改- -
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发表于 2007-5-9 14:04:47 | 显示全部楼层
我的妈咪哦,这个已经超出了,我的一点点了
- r) ]: \) x1 H7 J0 [$ V% d( y8 U! e不过你要翻JAVA的类库说明。你有下载没有?& s8 ?  A' G+ x' W
查询关于对比的函数。貌似关键字是contrast,还有compare
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[ 本帖最后由 =|HERO|=GreatWall 于 2007-5-9 14:05 编辑 ]
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 楼主| 发表于 2007-5-9 14:06:19 | 显示全部楼层
,.....看来还要翻书哇....我学信息系统的- -1 {* O' E% n% P3 W) Q3 B; m
痛苦啊15搞要交..没觉睡了
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发表于 2007-5-9 14:07:54 | 显示全部楼层
不是翻书,是要翻在SUN下载的JAVA的手册,书有个毛用。
' Q# V+ o( m9 S) n8 r2 C可以下载到的 是 jdk-1_X_0-doc
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[ 本帖最后由 =|HERO|=GreatWall 于 2007-5-9 14:09 编辑 ]
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