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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 ! n0 `3 {; k1 _- e/ i ! ]9 o$ B. c( _
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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
//*********************************************************************
( V4 v/ W6 K6 f  L/ J7 ~6 A//  ProgramCompare.java         Provided by: DRS
9 c$ }4 ~! Y' J/ h//4 r- F# T1 I* P3 |7 ?6 i6 h5 A
//  Program shell for Assignment 2
$ N  Y8 o8 t) N//% C9 |( r% W9 d) f; t+ X! e
//  Compares two text files line by line
2 i1 d3 u2 b. x//*********************************************************************
4 ?+ ?! s* F& }. f  `5 {/ T( N( g  w; h+ W/ b
import java.io.*;
( r7 s5 f" _4 [) T; g8 z4 ~5 W
7 D6 h6 d; W; c% s$ \. xpublic class ProgramCompare' n( q! F9 O+ e: V1 E. {2 Q8 K! O
{
, R& i$ X& c3 X' k' I4 H7 S7 d; K        //-----------------------------------------------------------------
9 n, |. W" G  T. E& ?# [        // Constructor: O6 y' u; w, }+ p( t( @
        //-----------------------------------------------------------------
# j1 m7 ~+ M: @% Z2 P. k1 u1 d7 ^        public ProgramCompare()! h. n1 S  |$ ^3 ?5 K
        {
" e# P4 U! j& J9 a! g, r9 O        }. l8 W" {" s9 \3 G% @" }
, o' S  t1 q( J: \( H
        //-----------------------------------------------------------------
) q! s% G9 F1 F        // Method for testing that class has been reached
2 i: _/ P! y( m( ?7 N, G& _, n* j        //-----------------------------------------------------------------       
9 @% z0 r, U* M* K8 S  [
0 J. W2 M4 Q" Z        public boolean ProgramCompareReached()         . ?! S/ U! @7 N+ r* z- C& ]
        {$ @% m( F; ^3 x
      try ! E- q' A: U$ ], P6 \: [! Q. l
   {        
, `5 K4 e. {3 ^$ D% t9 ~                       
$ L1 l: k+ d/ O                //********************************************************************
5 a; d( h! W9 g4 W                // Try-Catch Statement is used to handle exceptions - such as file not found 9 L6 K  j* ~5 j6 A% `7 T
                // Reading the files will need to be placed inside a Try-Catch - just like this one!
1 t9 k. X; C$ ~8 n; o' Y                // For more information see page 534 of the textbook
4 L9 h2 S: m, ?. N  x* A' _1 @                //********************************************************************2 o3 q9 o) R) \* \1 x
                     8 n$ b: l# E/ e: c; l
        }
* R8 W% H' u, t  D             catch (Exception ex) // Exception caught here and message displayed to the screen
3 @: d) [4 M6 q& k1 }# J# d% h3 O          {: d& \. x  Z6 H+ ^
                    ex.printStackTrace (System.err);
$ \1 L. G$ N6 U0 r5 e8 M           System.out.println ("Error message goes here"); // Replace this error message with your own         
) q2 d. F0 u  V+ s) {2 J- f  K5 ]        }
7 N7 G% z  Q1 G3 b/ g& L                return true;
) }+ e, D% T6 }+ [) R. K# w( B        }
  _: z3 P% L2 o0 h9 c% A* [- U( k( I, W" m9 E" t
} // end of class ProgramCompare
; _" N& [+ s- ~1 m& d1 @, e+ s9 y8 N4 l& v" V  y
//-----------------------------------------------------------------
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 楼主| 发表于 2007-5-9 14:01:41 | 显示全部楼层
//********************************************************************* v% j; F1 K, J# B. {8 G
//  ProgramCompareMenu.java    Provided by: DRS7 k! E  j$ `- I9 h6 F. S: d
//% q& u+ i/ }6 j2 g7 h
//  Calls AuthorisedUsers.java and ProgramCompare.java, P- m6 f( F6 K
//4 f/ O. f3 @, x6 j, k: o2 z
//  Driver shell for Assignment 2.
0 c* o) n+ N5 N  w- n# w' p//********************************************************************
# l6 H8 C+ H3 j" P: i. L) q0 T: a& }6 }
class ProgramCompareMenu% a! @. g( K7 S+ K0 ~1 R% N
{
! I% @6 [, r/ P3 Y2 C    public static void main (String[] args)* o; a( p: p5 I% @; S
            {
1 T2 y. W/ Z: v/ u- I; G                //Check that the two classes ProgramCompare and AuthorisedUsers are reachable/ Y9 n# I7 Z- y" D5 x. T* }
                ProgramCompare reached1 = new ProgramCompare();
) m  j8 o0 T3 i1 ^                AuthorisedUsers reached2 = new AuthorisedUsers();       
+ p- }, K+ w+ B8 z2 S                System.out.println("ProgramCompare reached? " + reached1.ProgramCompareReached());
1 ]9 Q. l3 ]# I! Q9 t4 u0 ]                System.out.println("AuthorisedUsers reached? " + reached2.AuthorisedUsersReached());       
% x0 B# U) x! A5 l& t. p        }
# N) H# k* _* W! E0 f}// end of class ProgramCompareMenu+ ^2 H# r8 p1 P! \) `0 W

( Y  b- V" {; I% R//-----------------------------------------------------------------
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 楼主| 发表于 2007-5-9 14:01:55 | 显示全部楼层
//********************************************************************/ W4 V  p, z8 W/ c  O7 l3 G
//          AuthorisedUsers.java          Provided by: DRS( R( k+ ~! e3 i8 n9 G
//               
' Y; ~0 D$ ^9 ^$ A+ w- P//         Program shell for Assignment 2
7 x7 z2 Z" p2 t7 A) D//
0 Z$ g1 o; a- Y/ d0 i//         Represents facts about an AuthorisedUser7 ~- D1 x2 y& N+ b1 r: L7 H, x% W
//********************************************************************
7 S( p% l* c; c3 P% ~
# n/ Y) J. |. ?3 S0 Npublic class AuthorisedUsers' E, x$ c* E; X) r- o3 J! g
    {$ _0 g4 Q. \" }# ~8 t* k

1 f/ V: v3 u# K7 Y. q4 M* i5 i        //-----------------------------------------------------------------
3 s! Y1 j" d, A" F9 ]3 F        // Constructor
2 p1 C9 R1 R5 _% m3 Y        //-----------------------------------------------------------------
0 G# T; I3 F% y, p7 P- T
' K* \4 y7 `& k4 K: s4 S" ~        public AuthorisedUsers()
$ l3 o# [" I7 k$ t# K# I, r! O                {$ G4 q# O" J7 h$ E2 L
                }
; P& \# J4 t% j7 f: R) d* P8 E$ D/ J8 r. G
        //-----------------------------------------------------------------
! K! {# m7 O7 {& B5 m. G3 S1 j        // Method for testing that class has been reached
/ e6 e: ^0 Q$ q8 x2 `0 j) k        //-----------------------------------------------------------------        ! d( h7 C# v% ]  U" x3 g4 h  R& V" S
        public boolean AuthorisedUsersReached()/ g0 e. h+ c9 H4 r$ C1 M  v9 I! d
                {
  z, V% b$ V) r                        return true;                       
% |+ P) G9 R  C* p                }2 d  i2 T+ ~+ Y! Y0 ^4 r
                8 z! C+ k) {+ u% Q, `
    } // end of class AuthorisedUsers
) @0 d5 K0 z; ~//-----------------------------------------------------------------
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 楼主| 发表于 2007-5-9 14:03:32 | 显示全部楼层
BSA104 Business Programming8 |. `3 N4 C+ p) l
Shanghai - 2007
0 ]( }) s) V% y; F. NAssignment 2. v1 B+ D! G' X1 E
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)
2 F) b; B8 P! d! Y1. 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.7 l: s/ x* X3 d! |9 G! q
The staff must be able to:
8 C" V" I: L1 }% k# `  O Log on to the „system‟ using their user name, and a Personal Identification Number (PIN) which is a four digit number **.
6 v6 U  O* [- }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.
( ~  l/ u; O) I. X' g; \$ y The interface should provide a menu so that the staff can:
3 E6 s6 E, [( R- M+ O9 F) ?a) Enter the names of the two Java program files to be compared
+ s4 ^! w" g5 m$ | For this assignment, it will be assumed that the two Java program files are in the same folder as your program.
6 f5 J! Y2 B+ B" j& 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).
/ u: ^9 K8 f* A$ [BSA104 Business Programming – 2007: Assignment 2. X  }; z+ \2 O- L/ w7 K3 U* S
Page 2 of 5# P( L1 o1 ]7 |1 F, R
b) Print out to the screen all the lines of code that are the same
: M! }8 y6 }$ m Include the name of the file and the line number of the code being printed for each of the two files3 Z" E1 E6 @4 C- D% `1 i
c) Print out to the screen all the available information regarding the evaluation of the two Java program files being compared$ ?3 O7 m3 }2 U/ @2 Y. z# C
 the name, username and department of the user  e/ v! z' M8 e# M
 the statistics of the comparison
; S/ {( F$ k1 G4 V- For example: the number of lines of code checked, the number of lines the same, the number of lines that are different0 T* J3 k6 x" ^/ j
 the recommendation for further checking7 Y7 X: ]/ Y( j( x
- 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 closely0 H1 b0 W% \9 q9 p+ F7 }! ~
 the names of the two files compared
+ ~6 D* t/ l3 J' H4 W+ B9 Zd) Leave the program (exit)( |1 A+ \3 a  }0 n, P* x; k% O' q$ J8 A+ X
The ProgramCompare class: (Total maximum 20 marks available)" j+ F7 ]! x9 _* U( M1 W
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)
! I2 S, r7 g5 n! y" ]* Ra) provide an error message if the files are not found or there is a problem opening them
' x+ L2 v" f0 X5 ab) compare each line of code# Z1 ]* k% [5 q% K. L& r
c) print out the lines that are the same+ D/ a6 ^) N& g
d) count the number of lines compared / lines the same
' E/ O+ j- V4 w% ?# w' tThe AuthorisedUsers class: (Total maximum 20 marks available). N+ |/ s; ]: l  T) R  w
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)0 _' Q* e5 C5 m: o) W1 p2 |
4. Provide methods to:
: T  n( Z: N, ^5 Y5 @# S% v  La) 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
) r! k: q- H0 cb) return the name of the authorised user
5 g- p( ~0 X$ s: d$ _5 L! Cc) return the name of the department of the authorised user
6 \& a* O: [( \! S, cIndividual Data (Maximum 20 marks available)
1 o6 k* z# i9 g- Z0 L. j2 W* t5. 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.
4 R+ N* ~  A( e7 DDocumentation (Maximum 10 marks available)4 G+ a7 m5 J  v' b- @* w5 V: Z
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.
; r# G" {9 D# ?  c7 LBSA104 Business Programming – 2007: Assignment 2
1 j4 K3 @5 |. hPage 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
; E- r( ?* l% r不过你要翻JAVA的类库说明。你有下载没有?
' z  L* d% ?/ K" c查询关于对比的函数。貌似关键字是contrast,还有compare
6 ]- t* X4 O0 j4 |( l- D" S# K- h" q3 V# |% B
[ 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- -, N8 n8 A. D+ k
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。: s8 p, }2 y- j- d
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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