软件工程第五次作业

1、请运行下面code,指出其功能;

(需附运行结果截图,并用简短文字描述其功能)

(功能:随机产生三个姓名  和数字)

2、请将该code进行代码重构,使之模块化,并易于阅读和维护;

 1 import java.util.ArrayList;
 2 import java.util.List;
 3 import java.util.Random;
 4 
 5 
 6 public class Driver {
 7 
 8     private static String[] lastNames = {"Doe", "Smith", "Jones", "Adams", "Marshall", "Thompson", "Bradley", "Brown", "White", "Franklin", "Davis", "Cohn", "Clark"};
 9     private static String[] firstNames = {"Mary", "John", "Susan", "Michael", "David", "Lisa", "Wendy", "Diane", "Kelly", "Claire", "Elizabeth", "Mitchell", "Richard"};
10 
11     public static void main(String[] args) {
12         
13         // create an empty list
14         List<Student> studentList = new ArrayList();
15 
16         // initialize random generator
17         Random random = new Random();
18         
19         // create random number of students
20         for (int i=0; i < 3; i++) {
21 
22             studentsmessage(studentList, random);
23         }
24         
25         
26     //print out the students
27     for (Student temp : studentList) {
28         System.out.println(temp);
29         
30     }
31 
32    }
33 
34     public static void studentsmessage(List<Student> studentList, Random random) {
35         // get random first name
36         String tempFirstName = firstNames[random.nextInt(firstNames.length)];
37         
38         // get random last name
39         String tempLastName = lastNames[random.nextInt(lastNames.length)];
40         
41         // get random age
42         int age = 18 + random.nextInt(20);
43 
44         // create student
45         Student tempStudent = new Student(tempLastName, tempFirstName, age);
46         
47         // add them to the list
48         studentList.add(tempStudent);
49     }
50 
51 }
3、观看视频The Expert (Short Comedy Sketch),写出观后感(内容是什么,说明了什么问题,有什么启示),提交到博客!

内容:这个视频主要讲的是一个公司要做一个新产品,对新产品的要求是:画七根红线,一些用绿色墨水画,一些用透明墨水画,这七根线要两两垂直。在整个团队的交流中,开发人员认为用户的需求不可能达到的。但是项目经理认为开发人员就是专家!所以用户的任何需求都是可以完成的。
启示:想象与现实是有差距的。

4、学习在项目中使用 jar 文件:

1)在下列code中导入jar文件“commons-lang3-3.3.2.jar”,并运行,将运行结果截图提交到博客:

 

posted @ 2015-05-30 19:10  rjgc123  阅读(135)  评论(0编辑  收藏  举报