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:随机产生三个姓与三个名和三个年龄,其中随机产生的三个年龄整数的取值范围是18—38之间。

2、请将该code进行代码重构,使之模块化,并易于阅读和维护;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

public class Driver {

    private static String[] lastNames = { "Doe", "Smith", "Jones", "Adams",
            "Marshall", "Thompson", "Bradley", "Brown", "White", "Franklin",
            "Davis", "Cohn", "Clark" };
    private static String[] firstNames = { "Mary", "John", "Susan", "Michael",
            "David", "Lisa", "Wendy", "Diane", "Kelly", "Claire", "Elizabeth",
            "Mitchell", "Richard" };

    public static void main(String[] args) {

        // create an empty list
        List<Student> studentList = new ArrayList<Student>();

        // initialize random generator
        Random random = new Random();

        // create random number of students
        createstudentinformation(studentList, random);

        // print out the students
        for (Student temp : studentList) {
            System.out.println(temp);

        }

    }

    public static void createstudentinformation(List<Student> studentList,
            Random random) {
        for (int i = 0; i < 3; i++) {

            // get random first name
            String tempFirstName = firstNames[random.nextInt(firstNames.length)];

            // get random last name
            String tempLastName = lastNames[random.nextInt(lastNames.length)];

            // get random age
            int age = 18 + random.nextInt(20);

            // create student
            Student tempStudent = new Student(tempLastName, tempFirstName, age);

            // add them to the list
            studentList.add(tempStudent);
        }
    }

}

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!

       观后感:

                 这是开发者与用户之间的一段对话,开发者对用户提出的要求,根本无法完成。他们之间产生了冲突,冲突的原因我觉得主要还是沟通。里面涉及的内容有需求分析,但是开发者的要求很无理,根本不可能做到。
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:

 

原文地址:https://www.cnblogs.com/lovexff/p/4541906.html