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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 ' v+ P7 a% |2 v* t9 U$ C) [" ] ! m- M; z& n. D
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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
//*********************************************************************
1 p% u0 G  s0 ^0 z3 ^+ `) t* s; |# g//  ProgramCompare.java         Provided by: DRS# q, Z( ?* D2 e$ V4 }( S8 N
//
, A" e/ z- R: l9 I, P  y//  Program shell for Assignment 22 @- R0 Z' K3 a3 G8 W0 K
//
, y0 X: y0 w& j7 B3 l# V: Z//  Compares two text files line by line
7 O5 Q1 A; ^& A, K  p//*********************************************************************, q: f8 R1 C$ _5 j

# S* @- ~/ m# U) Q3 t9 ximport java.io.*;
* `% A; ~% a9 x; R( a/ ~, c* L: t* {  Q1 X4 h! t  v
public class ProgramCompare
) X" k! |! V8 Y' U- c{' ^" q* Y) f3 q$ |! g  M
        //-----------------------------------------------------------------
, ^, p: \5 x# r% p& R( w        // Constructor& w2 p" F0 y- h  z4 v2 [
        //-----------------------------------------------------------------7 o0 a- D0 Y& i; f- w, ^
        public ProgramCompare()
5 }4 L9 a! ]+ Q2 `0 t7 g        {
  y' O8 X( \& _/ x4 o        }
: p3 x8 `+ x& r. v) F. K- Y% Z- D
        //-----------------------------------------------------------------
! c/ w9 J3 X/ r" C# _9 u- B" b        // Method for testing that class has been reached$ p/ O1 K% ?6 }2 F
        //-----------------------------------------------------------------        ( F3 L  ^' ?* x

$ J: x3 G) z# ^7 @/ `        public boolean ProgramCompareReached()        
: Y* `& a" M. E; w1 _        {) y- c3 b! z9 x( `* r
      try $ {- a$ l) _. ^% Q
   {         ! Q; y  G$ z" P: Y8 a* q
                        * {$ S2 H+ G1 n! _  q3 m
                //********************************************************************/ r6 Q; S; l5 e; b+ h, H" \
                // Try-Catch Statement is used to handle exceptions - such as file not found
: v2 V! G1 ]% \                // Reading the files will need to be placed inside a Try-Catch - just like this one!' Y* c* p* X4 N! A9 H, B% g# D
                // For more information see page 534 of the textbook
8 P2 N3 y- G, n% d                //********************************************************************
: S/ h: e& L+ K7 N& ?                     9 V5 y0 S) U3 k  o( F* c8 q- f
        }
( U8 d/ }6 E# ^( \% ^: `4 n             catch (Exception ex) // Exception caught here and message displayed to the screen
5 O( d8 _( g# h# w1 H  I, p          {% K4 u' H) g* c) g/ E
                    ex.printStackTrace (System.err);
: l+ ?) ?4 }2 _8 R. c4 c           System.out.println ("Error message goes here"); // Replace this error message with your own         
8 ]0 z8 J$ I( [$ [8 R        }
6 O6 a; j/ Z) P( A# J3 W: M& d! R                return true;
1 p, B- e! ]! `0 z        }7 Z; K4 q: e5 g
1 V( E2 h0 N) N
} // end of class ProgramCompare
: V: g4 G; a, @& ?( G7 R( w$ k+ u! i+ y
//-----------------------------------------------------------------
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 楼主| 发表于 2007-5-9 14:01:41 | 显示全部楼层
//********************************************************************' [. _; R# J- V# T9 a0 r
//  ProgramCompareMenu.java    Provided by: DRS& o* G$ ^7 l/ S& C2 h  [
//
5 _( }+ j/ P9 U7 V0 e3 Z2 g//  Calls AuthorisedUsers.java and ProgramCompare.java
- y) C" z/ ?& W. j1 c//) G* o4 k8 U; X
//  Driver shell for Assignment 2.
* [2 N% I) K4 L/ g6 _//********************************************************************8 j$ v, f# d' P6 C, ~/ p
! r; L2 Z& g$ R. s2 M- w
class ProgramCompareMenu8 O- g3 M  `1 s0 c# h
{
: A# D& m. g6 y9 L    public static void main (String[] args)$ X0 t4 J$ g0 e* \' N% c, E
            {
% |4 y+ d  Q) Q/ r' k$ Q& Z  O                //Check that the two classes ProgramCompare and AuthorisedUsers are reachable1 U5 @. f- O; i
                ProgramCompare reached1 = new ProgramCompare(); ( K* g1 o% U" s' y
                AuthorisedUsers reached2 = new AuthorisedUsers();       
2 H% [- k) W! `! E                System.out.println("ProgramCompare reached? " + reached1.ProgramCompareReached());
5 \4 A# v* s; I+ v# g                System.out.println("AuthorisedUsers reached? " + reached2.AuthorisedUsersReached());        & Q$ b, `/ a" N- K
        }1 ^" {5 q; R) N4 j6 D
}// end of class ProgramCompareMenu% e& h# ?+ y0 j
% D: h8 w6 z9 X
//-----------------------------------------------------------------
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 楼主| 发表于 2007-5-9 14:01:55 | 显示全部楼层
//********************************************************************" R% u0 X1 q3 C
//          AuthorisedUsers.java          Provided by: DRS
* l! a8 v$ K( Y# v//                3 E% V$ n- g, l/ C
//         Program shell for Assignment 2
: `5 m8 J8 H9 i% H//2 h$ V  D, O% c  b, U
//         Represents facts about an AuthorisedUser4 Q! ?2 C. d" S0 }# Z9 n
//********************************************************************
( c6 D* V" p1 x1 s/ o" z) }
" i1 `" U' O2 @5 j4 i! O/ }public class AuthorisedUsers# d. G9 h" u; x0 u
    {6 n( h" E$ [! W8 f! H) r% _

3 N8 r( l& O* F. B* a$ T0 I        //-----------------------------------------------------------------
# e7 E) q( G/ o# u" `- x) d        // Constructor
. Q. M, D6 u$ P        //-----------------------------------------------------------------$ j3 p: J2 A& y$ C7 k

5 Y/ `# }: O, }  p" g        public AuthorisedUsers()6 P# i( k6 ?, I; |2 ]8 e
                {+ J- X! G  q  C
                }, ]  `5 X: [2 Z  ^- L

& b( N+ K& T: J. L3 x3 @        //-----------------------------------------------------------------+ O5 V+ o. w1 }* z1 e' A5 p
        // Method for testing that class has been reached% g7 j. Y% K. R' h: m& C2 R" B
        //-----------------------------------------------------------------       
- i2 |( R' ~. ]. `8 n4 U+ q        public boolean AuthorisedUsersReached()
4 y) V" y# O8 F" q- s" {6 q                {
$ ~9 n' b+ @0 a, W                        return true;                       
1 h) M; I9 i1 b$ w0 f                }
2 d' ], ]2 C# Z                7 e' x. K, I7 C0 ?- Z
    } // end of class AuthorisedUsers6 E# _9 T1 \8 i" t! E' p+ E+ 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' l9 g6 P1 Q- H
Shanghai - 2007- |2 N7 U3 c/ P% Q  X  o4 G
Assignment 29 V; ]9 ^3 {2 u" u
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)# a- I9 r3 P  c0 h
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.
# G5 C; f7 ^  r4 WThe staff must be able to:
  r- T& y8 B9 o+ o  K Log on to the „system‟ using their user name, and a Personal Identification Number (PIN) which is a four digit number **.
. n8 i7 l, _' e: l$ F1. 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.
2 p) Y7 ~: V, O! F  g5 t- v3 Y The interface should provide a menu so that the staff can:% N1 n& @4 l9 r  S. H. w4 G
a) Enter the names of the two Java program files to be compared5 c& T) C' D7 W2 E! ^, H
 For this assignment, it will be assumed that the two Java program files are in the same folder as your program.  C! ~- g) @' R: u( X9 ^$ v2 |$ 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).
8 |* @+ E( q9 H5 Y! h' r. K0 iBSA104 Business Programming – 2007: Assignment 2
" W6 E! F- H. T! IPage 2 of 5
) \  {( X0 u5 _b) Print out to the screen all the lines of code that are the same6 v# o/ V4 z& f
 Include the name of the file and the line number of the code being printed for each of the two files
1 ~5 k. ^- Q* z! T, ]. Vc) Print out to the screen all the available information regarding the evaluation of the two Java program files being compared; }; u" V( i" F( }, b
 the name, username and department of the user
& a1 |2 T9 x$ @( _+ h the statistics of the comparison
+ k" I6 }" v' A6 [, a6 T- For example: the number of lines of code checked, the number of lines the same, the number of lines that are different
4 i- D% i% w% \, K( p# E the recommendation for further checking( j! j! u) `, g" \% k5 O$ }
- 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
- j) K' q3 R" Z/ r6 D) ?) e4 o3 N the names of the two files compared
' O0 {" s. V1 K$ Sd) Leave the program (exit)
7 K. v* g5 @/ {: D- n: S8 ?+ ]The ProgramCompare class: (Total maximum 20 marks available)2 M: _9 Z5 q8 C9 ]0 V
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)
  _" ~1 I9 j; `( Ba) provide an error message if the files are not found or there is a problem opening them3 ~0 c: I7 P# x3 `1 G% D9 r$ H
b) compare each line of code! t8 e1 H9 K& d- |
c) print out the lines that are the same% G' _$ l1 N+ K. Z) ~5 ]
d) count the number of lines compared / lines the same  e6 e! I7 ^* ^& T7 \; b+ h/ k
The AuthorisedUsers class: (Total maximum 20 marks available)
1 G- v3 f; L9 X5 s1 ]/ Z6 z9 E  D- T3. 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)
8 i+ f) h* G% s( O- x# Q4. Provide methods to:
7 u8 ^; a' D" |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" a* l( G; a; h8 r% ^, h- S
b) return the name of the authorised user
' g7 S, O5 ^4 t  l7 q( Sc) return the name of the department of the authorised user
( z; e4 N: d7 P" _1 D" ^Individual Data (Maximum 20 marks available)
' w; v9 d2 W2 b2 [0 h3 C5. 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.! ^0 M# s) n6 c8 f" d- \1 t0 v3 k
Documentation (Maximum 10 marks available)
! @- V! O% F4 m: [2 T3 @5 J6. 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.
# s' J$ }2 v3 a8 s4 hBSA104 Business Programming – 2007: Assignment 2& s5 y7 }/ H" V- t6 b
Page 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
  b% R# F. Z- w, F$ M: k不过你要翻JAVA的类库说明。你有下载没有?
8 B! b/ D. s1 o查询关于对比的函数。貌似关键字是contrast,还有compare
7 I# j0 Z. t, M! z' y& L% x9 d5 Y
[ 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- -
4 t! M% j8 F  x" g( A+ M; O1 D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。: W4 u) N+ u( t% G4 r' I9 w
可以下载到的 是 jdk-1_X_0-doc
3 r2 a/ ]5 e8 O* I  T
& ?. t$ K: f, a! W0 p: g5 i[ 本帖最后由 =|HERO|=GreatWall 于 2007-5-9 14:09 编辑 ]
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