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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" J q( P6 X 1 Y) D' G6 d5 n* i, ]% ?
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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) Y! s+ R+ n8 a//  ProgramCompare.java         Provided by: DRS
7 w4 v0 [! ?3 j: K* S7 Y  b//6 {+ v, v9 a6 ?. Q9 O
//  Program shell for Assignment 2
$ s  K! ]5 v, p/ }! r  ~5 M9 M8 V( A; B//
& v* Z- e  Y8 m//  Compares two text files line by line) R5 p9 J& S. I5 o4 k. {
//*********************************************************************
% M( @9 g* n# i" U
) P. a0 Z3 ]! E% I7 Z% Mimport java.io.*;
7 g8 K4 m. `& G8 Y0 R1 w6 ]
; q: u6 f9 X/ Y& A6 H" f- R# [public class ProgramCompare
7 I9 y8 a3 v& e; ?/ K  e* }/ w{5 O( S; g" g3 T' f
        //-----------------------------------------------------------------
7 @; W" [: D8 v0 h6 E# [0 G        // Constructor
. `$ q$ u- K9 D' k        //-----------------------------------------------------------------
7 H1 I2 n3 N! o1 t& n0 M        public ProgramCompare()
; B/ h  k) s% B& ]# _        {6 X8 _/ d3 f1 T5 S) n6 i* y
        }
( ]) g# C3 [. W1 y! t" r* D( X1 w* D
9 o# _; A% I* _* y% F' W        //-----------------------------------------------------------------  C" ^6 A' V1 H- v, o# Q' J. L
        // Method for testing that class has been reached+ _" Y% n3 f& H& j% A0 e8 |' H
        //-----------------------------------------------------------------        - |' ?2 w( M. _3 U) O6 X
9 v9 z- a* V8 A# O. h# X
        public boolean ProgramCompareReached()        
' a5 L  M# Z; x5 C$ O( h        {
- F# [( ~3 a, [3 S7 ~) I      try
- [1 b, n" a5 a- f$ u" }   {         / U, F' V, \* ~
                        + ?' T& O% i4 s
                //********************************************************************
* K7 d" m4 E; L  ]& u$ v" Q                // Try-Catch Statement is used to handle exceptions - such as file not found 2 i8 c" J# [% J3 h: h% i
                // Reading the files will need to be placed inside a Try-Catch - just like this one!
' ^$ R- N! b% L" c& F                // For more information see page 534 of the textbook
7 k+ L5 t! d. Z2 N7 ]                //********************************************************************- Q7 o6 A7 r2 E
                    
1 Y3 O. {) I1 r5 t  j        }
9 z+ @- ^/ y0 T4 T" S1 X( N             catch (Exception ex) // Exception caught here and message displayed to the screen
5 S  H3 M' R+ N1 \4 D% V+ ], T          {7 L' i9 x9 E9 \+ w( G5 p, ?
                    ex.printStackTrace (System.err);
9 `' T4 U+ Y% b& s" \8 N, e           System.out.println ("Error message goes here"); // Replace this error message with your own          $ ~% [) {& e" [  x6 c, S* N# p  j
        }! W* j$ U% K2 J: O& K: R5 N
                return true;
& k; A4 r. F2 ~* j" r        }5 y2 L1 v; g8 m. F, t* _

- _7 V9 L& v9 K' ?} // end of class ProgramCompare
& g6 D5 n2 ^' K6 g" i( ~. V4 S! f6 r& G  p  q, i4 X7 t
//-----------------------------------------------------------------
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 楼主| 发表于 2007-5-9 14:01:41 | 显示全部楼层
//********************************************************************' Y* ]5 G/ B1 O
//  ProgramCompareMenu.java    Provided by: DRS
7 `  W% e- W# B, Q' a//( U/ x/ U! g4 d' _4 @& q8 J
//  Calls AuthorisedUsers.java and ProgramCompare.java
, K1 {, O$ T, s  R//
3 @4 |. n/ l! y//  Driver shell for Assignment 2.  q2 o0 A  ?+ }9 P
//********************************************************************
* G; L+ \1 c+ {2 ?9 ]' A4 z1 Y& @9 ?; G* t% B8 i6 A5 [
class ProgramCompareMenu
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    public static void main (String[] args)& u. L$ ]# C/ i& P  j- L
            {5 T5 |" h- }5 y
                //Check that the two classes ProgramCompare and AuthorisedUsers are reachable
& p6 D" i/ d) b, Z% U; y7 B7 b/ k                ProgramCompare reached1 = new ProgramCompare(); # K+ m8 B9 K3 \/ P
                AuthorisedUsers reached2 = new AuthorisedUsers();        7 t' P/ j% d2 I/ i1 V
                System.out.println("ProgramCompare reached? " + reached1.ProgramCompareReached());
" Y- _" Q$ q8 V' r/ I( @$ `                System.out.println("AuthorisedUsers reached? " + reached2.AuthorisedUsersReached());       
! a; s( W* y/ N7 o        }. j' j" W! ]! _: Z
}// end of class ProgramCompareMenu9 G" `2 n, {5 ?- M

6 a7 s( E7 ^+ q9 m" z! C1 }* I. p//-----------------------------------------------------------------
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 楼主| 发表于 2007-5-9 14:01:55 | 显示全部楼层
//********************************************************************
* h) T; E4 k$ h7 l//          AuthorisedUsers.java          Provided by: DRS) m2 I, h/ r% G/ c. K" e' Y
//                * V+ p/ U$ j* ~; V+ u5 y
//         Program shell for Assignment 2+ g# E  f" d) `; w+ P: Q
//
8 k1 z$ o! H0 ]5 M; p( S# r//         Represents facts about an AuthorisedUser
/ ~6 e% D; E! p8 Q, x+ {. h1 n//********************************************************************
" f# V' U: Y% h; Q% Y2 i. D& y6 y/ w3 Z2 y. m6 f
public class AuthorisedUsers8 N' Y. v- s: d( w/ p4 j) c# U
    {" u# e) ]3 s# H! o! t8 J
6 V) e2 B6 ?, {" o
        //-----------------------------------------------------------------
) T2 Y3 F* v" X  j  L- w, o        // Constructor& }0 }$ f' l+ S3 o7 T  }
        //-----------------------------------------------------------------
- J5 S* h: k+ F/ y9 Z; q
/ u+ o+ R$ C; v  d4 w% y' ]3 U        public AuthorisedUsers()
7 v6 N+ h/ c' ~% P- |                {  o/ @0 N* S8 Y  U! Z% \0 g8 G
                }% ^: n' W: x  h* d
  I, l1 B3 E( Q+ t2 P8 F4 P) b8 n1 E0 V
        //-----------------------------------------------------------------( O$ T2 @& V* a2 X
        // Method for testing that class has been reached2 i3 l" y2 P& P' h2 ?( m9 K8 f
        //-----------------------------------------------------------------       
: E: ~1 v- h- }        public boolean AuthorisedUsersReached()0 V8 m. ~% M0 C6 d5 B
                {* j% N. n$ z) [, |& d
                        return true;                       
4 b6 K; s4 l2 B8 r; q! D                }
" E' n1 V7 l# ]$ v               
& S2 P( @4 ^1 p  Q. ?; _' E: n    } // end of class AuthorisedUsers- U- M& I- H0 R1 p. {# f, m/ E- ^8 b2 e
//-----------------------------------------------------------------
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 楼主| 发表于 2007-5-9 14:03:32 | 显示全部楼层
BSA104 Business Programming4 M0 z5 c% R5 A; B$ Q  v
Shanghai - 2007
! P7 `4 k! J8 ]& L$ B0 z) V5 DAssignment 2
  |0 \9 {7 k5 S7 v# M1 wDeadline 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)- Q  f/ {+ ?- W  C8 \
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.
& ~* F2 M9 E6 s8 R0 V% t7 sThe staff must be able to:: E3 ~3 Z! {9 q+ m0 [+ a9 z+ n
 Log on to the „system‟ using their user name, and a Personal Identification Number (PIN) which is a four digit number **.
% e) Y" A5 _; v8 ?9 O1. 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.
' s/ v  F+ p1 b& X! `$ }, B' f The interface should provide a menu so that the staff can:
: u5 f: [6 U8 e0 ha) Enter the names of the two Java program files to be compared  }" k) d& J1 E% @8 W
 For this assignment, it will be assumed that the two Java program files are in the same folder as your program.
7 d9 y- t. s: L" }! |. V** 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).
! S5 R) |+ B" _5 L+ _" k5 [0 QBSA104 Business Programming – 2007: Assignment 2
" o' x" W! B$ u4 V" ~% tPage 2 of 5) h2 b% ?) B0 c6 o1 l: P
b) Print out to the screen all the lines of code that are the same, e; U. A+ `1 q! M1 g, j
 Include the name of the file and the line number of the code being printed for each of the two files& k+ G$ n; m% J  U! {5 {$ F6 o
c) Print out to the screen all the available information regarding the evaluation of the two Java program files being compared/ ]" @( K* G* i  P7 l
 the name, username and department of the user" x; `) Z. V- ^& A& v& {% y/ |
 the statistics of the comparison7 c$ d1 U( J6 E4 k4 K) ?5 Y
- For example: the number of lines of code checked, the number of lines the same, the number of lines that are different
* r& Y0 j* f/ g! l8 G the recommendation for further checking5 J% |  e; _1 h  a4 \3 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* U! t$ |5 [0 V the names of the two files compared& a% \% p2 _' ?3 w; o& k3 v
d) Leave the program (exit)
0 u5 M& ?; h" j( M/ QThe ProgramCompare class: (Total maximum 20 marks available)
# {) \3 Y5 o$ ~1 S* s2. 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)
# s* ~8 ]& U% `5 N/ pa) provide an error message if the files are not found or there is a problem opening them4 e( a! L4 u4 y+ y' J+ B( l, b6 g
b) compare each line of code
$ c2 Z; ?1 i$ t: [0 e( Kc) print out the lines that are the same
- O4 o4 j2 z0 H3 q6 j3 B7 Nd) count the number of lines compared / lines the same. b" o- F$ [/ y
The AuthorisedUsers class: (Total maximum 20 marks available)- T) L. E" u5 ?- O# S
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)
% x+ |( F' {" ^5 Z0 {4. Provide methods to:8 S; k- g% V% M" g. I+ g0 X, U% ]  G
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
& f' y5 {/ G1 m0 U6 `1 Hb) return the name of the authorised user
1 p& D7 a% B# A" Z: Fc) return the name of the department of the authorised user' J" u, }5 t+ p
Individual Data (Maximum 20 marks available)
8 ~, ~3 a! _/ ^9 ?+ u5. 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./ ~7 ~$ V3 [$ V0 e+ Y
Documentation (Maximum 10 marks available)) o! X1 N1 s' O& Q% B' E
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.
: j8 a: j6 ?& Z; n5 yBSA104 Business Programming – 2007: Assignment 2- |, F' a5 \2 T3 k3 @) D- e& q
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
5 \( v! r2 f; x; ^! [不过你要翻JAVA的类库说明。你有下载没有?
; r/ r" K4 o/ E, Q查询关于对比的函数。貌似关键字是contrast,还有compare: h5 j# i8 w% z( M/ |9 [

/ b- O0 Q7 g8 Z2 [9 P[ 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- -
( A$ r  T4 N- t5 I! m9 g  t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。. u8 M. ~3 K- _
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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