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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 ( ]4 X0 r1 ~! M; W* ?) k. i# N. F
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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
//*********************************************************************$ R1 u- f  r2 s
//  ProgramCompare.java         Provided by: DRS' O* w% L$ L# v: _$ v
//
8 {- P: T& H, ~+ p//  Program shell for Assignment 25 [3 j9 F* @- q! e
//
- I( I! K9 J9 p7 J! V1 {% T//  Compares two text files line by line) L  M0 r5 B) W4 i
//*********************************************************************
, ~  ]/ j) f. |: h4 f" r5 z. K# w# g3 p' w% g: n& B( L# k  ~
import java.io.*;) P% `3 i% |& h8 k! ]

( N* B% M0 Z6 t  I& b" A0 Kpublic class ProgramCompare
/ c+ H$ t/ _5 q7 z: V6 A) m' n{
5 v; w, {0 D! m7 I        //-----------------------------------------------------------------3 \0 Z4 C( l9 p: |7 A) I
        // Constructor
0 N/ p* y3 Q8 |, z        //-----------------------------------------------------------------
( N! e" q  g3 M, s& R, Q        public ProgramCompare()
) _% R) J  W2 b5 k9 g6 m) z        {, s; ]3 z* L0 H& D) M4 E
        }% R( |5 O, j9 w( S

; i1 p8 t( T: k) Q/ B: q$ _        //-----------------------------------------------------------------
: E* b( X' @2 _- l6 u6 X        // Method for testing that class has been reached
& E- ?* T: u5 W$ q7 P+ W        //-----------------------------------------------------------------        # h0 O3 v/ c. w8 ?3 w

, g6 V+ a' e* @% v# Y        public boolean ProgramCompareReached()         ' Y+ J) ^& l* G  N$ H
        {! s; D" A0 A- K
      try * N5 Q8 M" m; T* L2 [
   {        
* ~. Z) m% r9 ~$ A8 g3 F                        / X7 N2 u8 u% e% u
                //********************************************************************
  e5 v* }' k$ ]' {$ n                // Try-Catch Statement is used to handle exceptions - such as file not found
; s* `1 u* z. k& U7 g6 [8 ~6 I                // Reading the files will need to be placed inside a Try-Catch - just like this one!
/ b, ^$ P. g& j( j: |/ k) r. a                // For more information see page 534 of the textbook6 R, D8 t* s* t1 C" r; ^
                //********************************************************************  O+ L, r3 r) i( C
                     0 {" o' I% J0 b9 W
        }
% O- k8 P7 E; ?  ~( ~5 f8 l( V             catch (Exception ex) // Exception caught here and message displayed to the screen
/ f. n- n( ^2 _; q2 W. L          {. E1 [( [" J5 K. e, X, P. R" g* E
                    ex.printStackTrace (System.err);/ A& [" }, Y* Q" L" q
           System.out.println ("Error message goes here"); // Replace this error message with your own          $ r+ L! S" D$ U' T
        }* }3 T2 A2 \5 C4 I$ F5 i* n
                return true;
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; k8 l% w2 G+ x2 o  a} // end of class ProgramCompare- P, o: l5 U. G

& O8 J, |6 P8 F) s//-----------------------------------------------------------------
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 楼主| 发表于 2007-5-9 14:01:41 | 显示全部楼层
//********************************************************************% o/ N! M1 x6 v' {& O( `
//  ProgramCompareMenu.java    Provided by: DRS/ J* x2 w2 O$ I# R' g
//" d0 N% b. }6 e: x$ _
//  Calls AuthorisedUsers.java and ProgramCompare.java( ?3 B  t. }1 O& ^( ]) m
//
; t3 o2 h. D" G" J& w  L//  Driver shell for Assignment 2., t; k+ g" G; S+ Q5 W
//********************************************************************
/ j* s4 U( g+ H: m+ I# Q
: V5 W3 L8 `; Z3 `7 V1 |. e. u0 lclass ProgramCompareMenu
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    public static void main (String[] args)
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                //Check that the two classes ProgramCompare and AuthorisedUsers are reachable4 t  W2 E0 W7 s4 |0 B7 g
                ProgramCompare reached1 = new ProgramCompare(); 6 n. X8 o& i( N$ I( q
                AuthorisedUsers reached2 = new AuthorisedUsers();       
. N- ~5 Z% \6 b5 }. O                System.out.println("ProgramCompare reached? " + reached1.ProgramCompareReached());
; E# S* g; n+ a2 Z* Y                System.out.println("AuthorisedUsers reached? " + reached2.AuthorisedUsersReached());        % |& i" _4 g! I* O
        }, ]7 F- Q4 G4 x$ z4 q/ K/ ]
}// end of class ProgramCompareMenu
! Q: N) O4 O; z7 i$ N, B
% g2 p) X7 \* ~9 [8 P//-----------------------------------------------------------------
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 楼主| 发表于 2007-5-9 14:01:55 | 显示全部楼层
//********************************************************************
6 |3 W' }! L0 m  {1 F3 ?9 S//          AuthorisedUsers.java          Provided by: DRS
, @) d* g7 z3 w# i' B, z2 V//               
7 b; a4 J" b! n9 e6 [( B- X+ |//         Program shell for Assignment 2
, x3 j: k* @3 _% [% n//
# N  I, W( J; u( h- p8 T( l9 p//         Represents facts about an AuthorisedUser
9 R/ a- A. \) o: O9 W2 w//********************************************************************8 U" `( w) K# y  t( t

( c# B, I( M* s3 tpublic class AuthorisedUsers
1 F( r! n  V) Z0 n! o    {7 f, {) C8 `% @
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        //------------------------------------------------------------------ R7 G9 D) ?( d2 L- j2 u  `
        // Constructor
  a5 B( y; v/ I1 O% ~" a        //-----------------------------------------------------------------
* ]' P: w: }( o' z" `/ E6 s4 z+ W& x0 [% w9 @) e3 r
        public AuthorisedUsers()- z0 A9 K% y; m! m
                {
+ J. X! I. i% N( }- }                }& d$ a( @# E8 p1 Y' _2 H3 G& D

7 u* ]  m) V$ Q; x        //-----------------------------------------------------------------
4 G7 T3 \  _3 [) H) p        // Method for testing that class has been reached
+ U7 v0 p! w2 _9 X        //-----------------------------------------------------------------        8 e# ^$ X; a" J- H3 i; j: _( G
        public boolean AuthorisedUsersReached()
3 Q2 r; Q- l' M! {& J  j8 a                {0 M! o, [) o& `$ ?8 S: z2 D
                        return true;                       
9 Y3 h- p: c# R7 }0 k7 n0 h6 S                }
$ }, G" x) a# }! f: H                + F& @9 C( Y) ?/ |# h1 O
    } // end of class AuthorisedUsers
8 d) j1 \8 `. @& [6 U8 z//-----------------------------------------------------------------
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 楼主| 发表于 2007-5-9 14:03:32 | 显示全部楼层
BSA104 Business Programming/ @" U2 h2 h8 ?9 ]" B( O
Shanghai - 20076 s$ M  B; {, B9 E" W/ @
Assignment 2
0 M4 d% n/ C. A. k$ ]4 H% T0 @, Z2 iDeadline 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)# ?5 z4 k  m- D
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.
* T1 Q6 l5 s, v6 E- A" K5 `2 @3 iThe staff must be able to:8 u8 i* J$ J& o# L2 r
 Log on to the „system‟ using their user name, and a Personal Identification Number (PIN) which is a four digit number **.8 J0 O9 a5 G& I/ P, r/ P
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./ ~( M7 |; \: e( I) N- j
 The interface should provide a menu so that the staff can:: l4 |: T$ b, ]  E6 v: V; j7 e
a) Enter the names of the two Java program files to be compared% l7 T6 X; h( N6 h7 n
 For this assignment, it will be assumed that the two Java program files are in the same folder as your program.
' w8 [6 ]; X* ~" W& l** 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).
" Q$ C3 G9 N! RBSA104 Business Programming – 2007: Assignment 2+ h' ]  n# V3 C9 [- C+ W7 o6 M* _  K
Page 2 of 57 ?& @+ ~3 c" r& ]9 v- C4 h
b) Print out to the screen all the lines of code that are the same
5 z( n6 h3 t( t( Z- E! Y3 `  ? Include the name of the file and the line number of the code being printed for each of the two files* E6 a3 I8 k, c; R; y+ K
c) Print out to the screen all the available information regarding the evaluation of the two Java program files being compared: i5 x/ Y) W+ S5 ]/ D- s8 ?
 the name, username and department of the user
& V+ k! ~* G. M+ d the statistics of the comparison" m& T8 p! U5 H$ L& O
- For example: the number of lines of code checked, the number of lines the same, the number of lines that are different
3 G- v( K4 `3 b& x the recommendation for further checking) ~+ f" V  D' N9 j5 \0 F
- 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
& s7 ~2 O6 u& b$ a the names of the two files compared
" I; l0 E; J( F) a; H( H& y+ td) Leave the program (exit)
2 A( [( _7 `$ ]/ h( l) T1 Q' MThe ProgramCompare class: (Total maximum 20 marks available)
" V( k% U3 r4 b3 I1 @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)* F. `9 V4 ?& P* |9 e
a) provide an error message if the files are not found or there is a problem opening them
# k6 _; M9 C' J" k5 j3 q0 s' e; ?b) compare each line of code  |% ]# E3 K( q7 `
c) print out the lines that are the same$ W& y8 M/ B! ^9 s1 X6 a
d) count the number of lines compared / lines the same* C- y' c/ u# w* T" D/ r
The AuthorisedUsers class: (Total maximum 20 marks available)! `- G/ H& Y$ l% Q" Q' n
3. 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)
* a" Q3 c/ Y5 w4 s4. Provide methods to:
; O' ~/ I% b1 M& F& pa) compare the stored username and PIN with the one entered by the user - return a value that indicates whether they match or do not match4 h, c8 f" E* R+ G
b) return the name of the authorised user
6 [7 w7 u7 u' V+ oc) return the name of the department of the authorised user
6 e8 ?, y9 _$ W. A* uIndividual Data (Maximum 20 marks available), y0 @1 A6 S5 c0 k5 l3 h
5. 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.) h8 [6 G8 x  ]
Documentation (Maximum 10 marks available)
" l/ I3 d. E; ~2 g6 s" x6. 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.# l- b4 U& j! z, C8 ]- q( B/ q
BSA104 Business Programming – 2007: Assignment 2
; e' U; O* O; i& f& }$ Q1 b7 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
! ?8 g% D' z. W3 R) H不过你要翻JAVA的类库说明。你有下载没有?
6 m& U4 e3 B) B; z' r6 O  G3 \& Z查询关于对比的函数。貌似关键字是contrast,还有compare, n) o3 u2 Z' t* }% B

2 k  b% [7 k, d0 ?' Q( d[ 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- -" W2 f1 N. q3 @& p% X" ~
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。
2 Q: C  ?( ~8 s5 q; ~/ X可以下载到的 是 jdk-1_X_0-doc
4 v& ~, W" H  [: k7 ~5 D( I  B. z2 ?( O2 N- x
[ 本帖最后由 =|HERO|=GreatWall 于 2007-5-9 14:09 编辑 ]
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