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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 ) r# ^7 x9 }# L) Q: F P* s8 h* L- }
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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. W- s! i1 g3 f4 [  O: `4 p//  ProgramCompare.java         Provided by: DRS
9 e2 \2 o- |8 C0 c' {5 k3 i//
8 V3 Q* B; L" S9 t$ E: D9 K/ Z//  Program shell for Assignment 2
) K" ?) q9 b0 P4 K5 z$ n//
$ m, x( l7 [4 Y" J//  Compares two text files line by line
( X, O  e+ L8 P) T! X# t; F//*********************************************************************
8 K3 f! j+ p/ }  j
9 A8 ~# ?( p+ ^/ Zimport java.io.*;
+ t0 e) X- [& y+ H" `. V
. N; m& k) u6 l  l" npublic class ProgramCompare+ S% Q2 l" t6 x* h2 i. [0 z) l
{! _  k6 Y( \3 x  P
        //-----------------------------------------------------------------1 ^/ b8 d8 x( [* l9 L- E2 X9 R0 Q9 a
        // Constructor
( s! p' ~( X: E9 e2 W( J) ]- f- R8 b        //-----------------------------------------------------------------1 v8 `2 N7 s6 Y% d* \! L
        public ProgramCompare()
8 T4 i4 }& u4 v* ~  U        {
2 {6 n  e  f# b        }; I/ D8 {: s! r- ^

5 a# d# R5 _3 K8 \        //-----------------------------------------------------------------
$ a3 l$ b5 Y/ e( \2 H        // Method for testing that class has been reached0 F# m  a' C& g9 ?2 Y7 _  d7 n* }' F
        //-----------------------------------------------------------------       
. a% j; N1 O  O. k9 T
, Y. W# z; Y* H( G' m        public boolean ProgramCompareReached()        
9 g5 `: T. [2 h* w9 Y) X* G1 r: O3 z        {2 ^0 O7 ~* w* }7 p
      try 4 k# p' t" U$ h
   {         6 O" I6 Q2 H# @3 m/ _' U
                        " t# d% m( K5 {& i+ S$ y9 G
                //********************************************************************
5 o$ K% ]! C# i: o7 V9 X; {                // Try-Catch Statement is used to handle exceptions - such as file not found
5 j& L9 u; S9 z5 |. A. o  z                // Reading the files will need to be placed inside a Try-Catch - just like this one!
& m! ]0 U4 v. s' U                // For more information see page 534 of the textbook
/ G# g$ P8 j3 i9 l0 K3 q: J+ N                //********************************************************************5 o- u& Q- ]) ^. G
                     ) |( Q% e$ U; }% h, S6 I. U
        }
; p& N5 Z$ o# f' G5 h" L             catch (Exception ex) // Exception caught here and message displayed to the screen 9 |% `% r( z; }: O) C4 y! ]! J
          {
- Z' ~; Z  c* X. b: F# `1 g                    ex.printStackTrace (System.err);
# c1 n. M6 _+ A; e           System.out.println ("Error message goes here"); // Replace this error message with your own         
" T5 J+ ~! U) Q) `        }
" z! N7 }! O  ^1 j5 Q# P+ |                return true;
. m: \" I) ^4 r, B2 U        }7 t. u, `- N* A

8 g: `' u) t( |/ ~4 B' ~. r} // end of class ProgramCompare- z- B8 e0 t: F9 M% C: [7 c
! \5 ^+ i1 U4 z4 H  S
//-----------------------------------------------------------------
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 楼主| 发表于 2007-5-9 14:01:41 | 显示全部楼层
//********************************************************************& b- m* A$ L, Q9 r: L1 {! {: u
//  ProgramCompareMenu.java    Provided by: DRS
" U; u* B" l1 e+ V4 l0 q. H5 |//
6 Y+ ?: w8 v5 w  P" d: B5 h9 L% u4 B//  Calls AuthorisedUsers.java and ProgramCompare.java
7 N8 R9 Z  h1 S6 h6 k- s2 N- ]//. `, q' C% T$ ~/ n
//  Driver shell for Assignment 2.3 O; N% a7 D" x* k- Y6 w
//********************************************************************
$ F) C; J' ^( p+ [) D2 L) k+ m2 n+ a% n1 L1 R7 H/ q; @
class ProgramCompareMenu5 K. N" s$ B" c
{& m% n6 p$ U% N  W' i9 a% y
    public static void main (String[] args)1 r' K$ [/ r" C
            {
4 R' O. V' K+ V2 h$ }                //Check that the two classes ProgramCompare and AuthorisedUsers are reachable
" ?0 f: E6 I* t( w8 ~. Z6 v                ProgramCompare reached1 = new ProgramCompare();
% f7 t0 M. d/ }9 `! p4 m2 Y: j4 A                AuthorisedUsers reached2 = new AuthorisedUsers();       
4 p- y4 E' O( j! K! h. Y                System.out.println("ProgramCompare reached? " + reached1.ProgramCompareReached());+ ^/ X: i$ R& }9 J& E' i& d6 k
                System.out.println("AuthorisedUsers reached? " + reached2.AuthorisedUsersReached());       
9 i9 R7 u8 q9 k3 C0 M" y        }
7 [( B; E# ~% t2 C5 f}// end of class ProgramCompareMenu6 w% s( m0 D" V$ S

/ m8 r4 r2 Y) L! R' @//-----------------------------------------------------------------
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 楼主| 发表于 2007-5-9 14:01:55 | 显示全部楼层
//********************************************************************6 u& V; C- F( N
//          AuthorisedUsers.java          Provided by: DRS4 i% I) D' \0 F8 X* P5 _9 o
//               
7 @& [) J2 Q0 U//         Program shell for Assignment 2
. W" {# ~) |4 h2 f2 o7 Q//, P7 P0 M# m, Z9 U1 \- Q" z- T
//         Represents facts about an AuthorisedUser3 N- k( S2 W' t1 T
//********************************************************************
* o8 [0 j( E, A! D. T  M; }: t" F/ \) l  @+ t6 y$ f) P+ I. V
public class AuthorisedUsers
6 T2 j. q) q5 h( O; C  X) z9 p    {
% Y) D/ [: {1 N3 Z1 {+ ^+ p/ |; n3 U
        //-----------------------------------------------------------------
& k. H: b1 m6 n. i0 ^$ @+ T        // Constructor
9 S, x% W# x3 _- z7 m% [, s        //-----------------------------------------------------------------
3 K/ v7 P" I5 S0 Z& M) `( p" R  D. n9 o; K: G
        public AuthorisedUsers(); x$ H( v+ A; T0 N/ E
                {7 E! O& X9 a: S! W
                }
; M0 i6 q1 d3 Z/ e! z+ D1 u
' d$ ?/ a! f7 `( A/ i" Y8 n- ^        //-----------------------------------------------------------------
8 W& {3 w7 O6 b  W9 e& a        // Method for testing that class has been reached, R, ?3 n" r0 ^- V" ]7 s
        //-----------------------------------------------------------------        2 ?6 E+ k5 D4 k: J5 m
        public boolean AuthorisedUsersReached()
: f7 a! p7 i1 |# B                {
; M/ i2 K1 u7 m5 {4 D                        return true;                        ( }0 @7 l! b4 Z9 P' h0 j! f) C. E
                }
  e+ u  J" `$ j& X. n0 ]& l& H                7 x& ?9 z* J7 ?3 i- ^6 |. N
    } // end of class AuthorisedUsers0 l3 O3 S+ J2 m3 y3 {: \
//-----------------------------------------------------------------
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 楼主| 发表于 2007-5-9 14:03:32 | 显示全部楼层
BSA104 Business Programming
0 ^7 u1 o$ ?* r0 X; qShanghai - 2007' [6 f3 ^- e: b% y0 [
Assignment 2
' U2 N' O7 X+ j: P% \/ f2 aDeadline 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)
% C3 w  Y3 K- x3 F2 t1. 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.# b, \3 N* F) r  w- u- i
The staff must be able to:( M, ]! W4 f  u+ M
 Log on to the „system‟ using their user name, and a Personal Identification Number (PIN) which is a four digit number **.
9 R, @  w; U7 }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.5 J+ k7 c( i" c; c- N, Y; D
 The interface should provide a menu so that the staff can:
9 [) J! \% i  r- ja) Enter the names of the two Java program files to be compared2 Z1 s) `4 C+ i/ |+ x
 For this assignment, it will be assumed that the two Java program files are in the same folder as your program.% t5 t: a6 Q! W1 D6 G8 ?( r
** 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).
6 u5 A1 w" m' d6 f/ IBSA104 Business Programming – 2007: Assignment 2- x; v1 ^% t  O6 c2 Z  S5 ^
Page 2 of 5
9 ~) z( z! E1 w- ]1 ab) Print out to the screen all the lines of code that are the same" k- h4 j, d4 `1 X8 I. N* b
 Include the name of the file and the line number of the code being printed for each of the two files5 [- K7 E, K) |  \" h2 _# x* g5 a
c) Print out to the screen all the available information regarding the evaluation of the two Java program files being compared
3 w5 X5 u  O2 }. W, ^9 ?8 n the name, username and department of the user% G6 F2 ?' J8 u$ w
 the statistics of the comparison
) l( |% a) \' S% |* q; c- For example: the number of lines of code checked, the number of lines the same, the number of lines that are different
! S) \  h. f, j the recommendation for further checking
, Q8 }. Q- k! `8 a- 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, p) A  \- f+ z' h* s, T) K1 @
 the names of the two files compared* I9 a; Q" k4 S# x
d) Leave the program (exit)4 ~+ M9 Z' \7 Q  W
The ProgramCompare class: (Total maximum 20 marks available)
1 u  z  y+ Q8 X! H& H7 e5 J2. 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)9 t$ w; c) ~0 J& G3 @
a) provide an error message if the files are not found or there is a problem opening them
, t8 B6 y5 x6 O% G# jb) compare each line of code" n3 Z; K) [5 I# K, p  s
c) print out the lines that are the same
+ t- y$ q$ o4 @6 }7 G( N) Z) Ed) count the number of lines compared / lines the same
) D9 u* N4 B; R8 p3 l) ~- v" XThe AuthorisedUsers class: (Total maximum 20 marks available)
! H2 O9 A8 b+ Y1 e/ M6 k8 ]( j' s& 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), ~7 c; H! C# F8 D( Q( r9 |6 ^
4. Provide methods to:+ c) p8 l" U9 ~3 z
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
+ ~/ ~3 |! m3 j  Lb) return the name of the authorised user
( @( g& L' \+ @; V/ Ac) return the name of the department of the authorised user
5 J% F3 p. D; Y1 uIndividual Data (Maximum 20 marks available)
) x: i  j, z- M9 |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.
& i3 ]9 a% f3 S% K# pDocumentation (Maximum 10 marks available)( o/ T  H$ _- O% s3 e7 K/ i
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.# u* }$ ^5 m" H5 J
BSA104 Business Programming – 2007: Assignment 2
9 f- [$ n- \- F% u3 ZPage 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
$ v; f$ `+ {0 z$ V不过你要翻JAVA的类库说明。你有下载没有?
1 \' i. g5 E/ \$ n% |( _  L查询关于对比的函数。貌似关键字是contrast,还有compare
" _# Z, j' @* r! S: c$ G% E
* q- Q6 B: B# h" W[ 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- -! ^1 o" `" o4 L0 B; T- e
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。
3 W8 ^' q4 b: v4 \# Z/ e8 F; P可以下载到的 是 jdk-1_X_0-doc" Q7 B: e9 Q- A, o  J

3 H9 P  \  h, q) {1 M0 H[ 本帖最后由 =|HERO|=GreatWall 于 2007-5-9 14:09 编辑 ]
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