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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7 D/ R- k- B" ?0 x) a' w 0 c9 C: A, v% 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
//*********************************************************************  s, @' @  s3 {; s
//  ProgramCompare.java         Provided by: DRS
" u0 H* v* o, }//
8 q! w$ {: n9 f7 c7 o9 G- p. G//  Program shell for Assignment 2  p% A7 I7 [  a1 v
//# X2 J; j' y/ }3 T+ @; s9 T
//  Compares two text files line by line
0 O; v4 u3 p! m8 n. T' S1 @3 O//*********************************************************************" b; y- ?6 A: |+ l* h- f/ t2 y

2 ]( U% G, Z7 D! t" B) d' f* Dimport java.io.*;" j+ L( M' P- N+ I$ B- M# d
% l* y8 h3 g7 l& o# s
public class ProgramCompare! H5 ~0 Y7 c1 b. N: q6 L& M
{
9 E+ Z( A+ p7 B        //-----------------------------------------------------------------2 I) \  k. Y0 x4 T
        // Constructor
( O* {" b+ e2 {, Q9 a9 L        //-----------------------------------------------------------------
. X$ z/ T% k- X0 e8 Z& D        public ProgramCompare()
8 R2 K% ~- d) P9 Q% N- W        {
$ v) M) q. {, G4 z  j        }
7 _$ O7 Y* M  {( t, p3 F
& T1 V% `7 u+ p        //-----------------------------------------------------------------1 ~/ x3 n$ M) M$ N. `
        // Method for testing that class has been reached6 U' z1 N' w: M% h
        //-----------------------------------------------------------------       
# V( W. ]4 q2 V% L1 F2 z( [/ ^1 v( ~9 b  d% X
        public boolean ProgramCompareReached()        
0 J$ b7 E3 q( O! B4 R' x: m& V        {
9 y1 m. M+ P" l8 H4 c1 L      try ! R- U6 S) O. I7 i! _1 U# l
   {         : u# R) a) }6 w1 m8 g
                       
$ L, }  j  S% c; h; F                //********************************************************************
: d9 f0 O* A8 C8 w                // Try-Catch Statement is used to handle exceptions - such as file not found
# L% K, ?: z1 s, M" q" H                // Reading the files will need to be placed inside a Try-Catch - just like this one!8 u6 C  ]# ^2 W* y. r. y* k
                // For more information see page 534 of the textbook
/ t: }; M0 U/ R0 q! f8 ^$ w                //********************************************************************
( G* W2 x' \; j5 W, ]                     8 w+ d5 {" n6 `9 R& @7 J- p
        }) ^! z+ w" \' H# |
             catch (Exception ex) // Exception caught here and message displayed to the screen ' z0 Y4 y2 E- ]  `0 {
          {
. g9 f6 T8 d% ~) J, t; I' A1 R- |                    ex.printStackTrace (System.err);
7 K" w: T, E/ l  t0 b           System.out.println ("Error message goes here"); // Replace this error message with your own          * X* s2 R) p, g5 ^5 x! Z) Y5 m( O* q
        }
* o0 q4 }0 O0 ~) L8 O                return true;+ O2 X- a5 m9 l# W$ J
        }
+ m- n% r* H5 F! N3 A. J; E; a0 l) O
} // end of class ProgramCompare- Y3 m# D+ d2 E, J( L. o' |9 ?
' ]$ }! ~. e5 O
//-----------------------------------------------------------------
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 楼主| 发表于 2007-5-9 14:01:41 | 显示全部楼层
//********************************************************************
( d" Q* O3 [0 X+ W//  ProgramCompareMenu.java    Provided by: DRS
8 L& R) i. {" x- C: X% b# D//, ~" m) p9 b2 \
//  Calls AuthorisedUsers.java and ProgramCompare.java
5 V0 m2 u" N( E, \8 D* Z//+ V# Z+ ^4 t( i$ J5 B9 w5 j
//  Driver shell for Assignment 2.
# k6 A$ S; u- N7 b! u; H+ x4 M) P//********************************************************************" ?$ w0 C. W4 G& r

' b' K" h5 z, i  t* z" r9 {class ProgramCompareMenu
* B  m3 q# l' ^, p0 @{
) Q9 J+ y, A: E# [% ^    public static void main (String[] args)- A9 C* h2 Y3 l" O. L
            {
( D! h! \% v  \/ d% l8 V                //Check that the two classes ProgramCompare and AuthorisedUsers are reachable  o" M* c4 S( v$ t6 R
                ProgramCompare reached1 = new ProgramCompare(); . N# M1 ^5 p) v9 x2 T( n& W" e" ?
                AuthorisedUsers reached2 = new AuthorisedUsers();       
: W9 P, X8 L- [7 a* q  ^8 z" T                System.out.println("ProgramCompare reached? " + reached1.ProgramCompareReached());) _# x* \/ f7 V( e% Q5 H5 H. a
                System.out.println("AuthorisedUsers reached? " + reached2.AuthorisedUsersReached());        ) n9 n8 o, E; u1 N
        }1 j, [* s% K; f6 V5 D
}// end of class ProgramCompareMenu: B: N( K% Q. m+ `3 F
1 c6 ^  T" h$ t, f
//-----------------------------------------------------------------
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 楼主| 发表于 2007-5-9 14:01:55 | 显示全部楼层
//********************************************************************
' S/ i& L8 P- _//          AuthorisedUsers.java          Provided by: DRS
  l: R# H8 N0 M6 |5 T/ Z+ W: o1 \7 F- C//                5 g* e! p  l& J# M  ~9 f8 Z
//         Program shell for Assignment 28 W* r( W! j9 ^7 y
//
" n! f0 Y( j6 U4 q//         Represents facts about an AuthorisedUser
4 @, J( M# k4 a2 f9 S//********************************************************************
) N, z+ }* {5 o) g/ I6 d( E4 t. i* x$ W# G$ [3 C( d2 c
public class AuthorisedUsers0 z! a0 a& Q* N" g! x
    {- N- [7 N5 ?' A+ j
, d6 z+ y! i5 }4 x4 Y5 I' T2 F' L- j
        //-----------------------------------------------------------------5 ?; s  ?& F- N/ ^* p
        // Constructor9 L1 f! {5 }% F' O, N3 s9 x
        //-----------------------------------------------------------------% U* H0 Q- f0 z( ]/ J  W! F

: X$ M+ H$ T6 `% j% g5 R        public AuthorisedUsers(): k. {" X" V2 N# `1 A
                {" ~: L3 ^2 z! J! f+ M8 o# H8 h
                }6 ?0 a* T7 W% Y1 U
: e; M6 W1 e) b
        //-----------------------------------------------------------------2 u/ W; d$ s/ t& v% z
        // Method for testing that class has been reached
, `/ d) J1 }# y' _7 [1 f        //-----------------------------------------------------------------        6 z: v( H$ x6 i3 p9 K1 _1 q
        public boolean AuthorisedUsersReached()' o# ?& q* `" d2 a; ~6 `: l1 \
                {  U% \5 v- B' d) w. I! J
                        return true;                        ( n$ M" S0 C# x
                }" |' S2 m3 g; T8 ~6 g
               
" g/ m, g( J/ t$ H! b2 ^4 h& d    } // end of class AuthorisedUsers
0 V. E+ L3 \  X, Y. f& T//-----------------------------------------------------------------
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 楼主| 发表于 2007-5-9 14:03:32 | 显示全部楼层
BSA104 Business Programming) d4 b) D: {+ d& V& _4 I- k  ?
Shanghai - 2007
' A$ b2 F8 K: |Assignment 2
! G! e! Q  l& P6 z3 nDeadline 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)7 O% q" ~, d! Y0 B7 e
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.
# R; k4 X$ q8 ~; w. H* W8 H. |The staff must be able to:% I' z$ J! ?" g
 Log on to the „system‟ using their user name, and a Personal Identification Number (PIN) which is a four digit number **.) f1 j1 m! q) n9 `! |/ ]2 r3 F4 `
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.; c+ C2 ]  i: m: P
 The interface should provide a menu so that the staff can:
* l) |5 Y) C6 V! }4 ?a) Enter the names of the two Java program files to be compared  h, c! \0 v6 k" l& S0 f% `6 C! D
 For this assignment, it will be assumed that the two Java program files are in the same folder as your program.
5 L. p# o& l$ Z& H1 @0 e$ }8 O** 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' U7 K6 C1 s( ?BSA104 Business Programming – 2007: Assignment 2& k) Q6 P; y1 F( o/ h5 d
Page 2 of 56 W5 h  }3 l$ K: c+ V9 @
b) Print out to the screen all the lines of code that are the same
* L3 `. ^' z! I1 | Include the name of the file and the line number of the code being printed for each of the two files
" |9 M' e: `+ jc) Print out to the screen all the available information regarding the evaluation of the two Java program files being compared
0 Y/ m3 r9 U2 O the name, username and department of the user, K: h% q1 I; f( Z; k' C
 the statistics of the comparison' {5 Y, u8 G+ R. {
- For example: the number of lines of code checked, the number of lines the same, the number of lines that are different
+ y5 l/ m; s! d' ` the recommendation for further checking9 y9 @+ ]- V4 I! ]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% }2 ]* _* A/ P; N0 f: T& Q
 the names of the two files compared; p  Y9 g1 K8 A. N9 y7 G
d) Leave the program (exit)0 t, a/ S, N( L* `7 s
The ProgramCompare class: (Total maximum 20 marks available)
/ K0 Y( c2 c* L+ Y. U0 ?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)
& |+ z7 }$ K* g6 k! Ka) provide an error message if the files are not found or there is a problem opening them
( s; t" g7 H, yb) compare each line of code
+ |9 }% _5 _3 J0 L. V# I, \c) print out the lines that are the same( ^: P. b# ~3 K& S' L
d) count the number of lines compared / lines the same7 _  v/ t0 h1 G, ^+ l6 D
The AuthorisedUsers class: (Total maximum 20 marks available)+ l' T$ y+ l( y" |" X, A' b
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)$ B  m' K5 @$ m$ h% P) Y. E
4. Provide methods to:
1 y2 k+ a" x- J- j6 ~! z: B- ia) 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
( I; {/ I3 M/ ]; ?b) return the name of the authorised user
5 S& o# U$ x$ g2 o. p& L& Y- `c) return the name of the department of the authorised user
7 z* s" w0 Z9 b" O1 l1 w7 aIndividual Data (Maximum 20 marks available)
3 C( g1 B% w/ \% w5. 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.* ~! k3 i- L. T
Documentation (Maximum 10 marks available)3 T" G! v  L. I9 E: I4 i* 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.! J9 ~+ @& H, {7 h! W
BSA104 Business Programming – 2007: Assignment 2
9 O( E) l, k; n. A, s, L$ nPage 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
' f) r$ ~5 p( v不过你要翻JAVA的类库说明。你有下载没有?
8 ?5 m8 l% a7 Z- F5 j查询关于对比的函数。貌似关键字是contrast,还有compare' h3 j1 t# Y6 |" f$ \' \. ?
+ o# r. f& A: c8 g3 S
[ 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- -, z7 d& c$ v3 L3 a1 u; ?0 \+ |
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。+ n- t1 v6 _! c
可以下载到的 是 jdk-1_X_0-doc
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1 W4 e9 R5 D# a: _[ 本帖最后由 =|HERO|=GreatWall 于 2007-5-9 14:09 编辑 ]
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