学习进度条:

点滴成就 学习时间 新编写代码行数 博客量(篇) 学到知识点
第一周 8 0 0 了解软件工程
第二周 10 0 1 博文一篇
第三周 15 0 2 选择项目、调查问卷
第四周 20 80 0 结对编程
第五周 25 330 1 java的学习、软件工程
第六周 25 210 0 编译原理、软件工程
第七周 15 0 0 软件系统设计

 

1.题目描述:某公司程序员二柱的小孩上了小学二年级,老师让家长每天出30道(100以内)四则运算题目给小学生做。二柱立马就想到写一个小程序来做这件事。 这个事情可以用很多语言或者工具来实现:

•Excel、C/C++、Java、C#、VB、Unix Shell、Vbscript、Javascript、Perl、 Python、…
 
2.结对编程对象:李丽莎 2013110420
 
对方博客地址:http://www.cnblogs.com/tripoon/
 
对方贡献比列:1:1
照片:
 
3.代码:
package arithmetic;

import java.util.Random;
import java.util.Scanner;

public class Arithmetic {

    private static Scanner input = new Scanner(System.in);

    public static void main(String[] agrs) {

        int choose;

        int right = 0;

        int first = 0;

        int last = 0;

        int[] error = new int[30];

        int[] errorId = new int[30];

        int oper, j = 0, k = 0;

        int result1 = 0;

        int result2 = 0;

        Random random = new Random();

        while (true) {

            System.out.print("是否进行运算:   1.是         2.否\n");

            choose = input.nextInt();

            if (choose == 1) {

                for (int i = 0; i < 30; i++) {

                    Scanner input1 = new Scanner(System.in);

                    first = random.nextInt(100);

                    last = random.nextInt(100);

                    oper = random.nextInt(4);

                    switch (oper) {

                    case 0:

                    {

                        System.out.print(i + 1 + ".  " + first + "+" + last + "=");

                        result1 = input1.nextInt();

                        result2 = first + last;

                        if (result1 == result2)

                            right++;

                        else {

                            error[j] = result2;

                            errorId[k] = i + 1;

                            j++;

                            k++;

                        }

                        break;

                    }

                    case 1:

                    {

                        while (first < last) {

                            first = random.nextInt(100);

                            last = random.nextInt(100);

                        }

                        System.out.print(i + 1 + ".  " + first + "-" + last + "=");

                        result1 = input1.nextInt();

                        result2 = first - last;

                        if (result1 == result2)

                            right++;

                        else {

                            error[j] = result2;

                            errorId[k] = i + 1;

                            j++;

                            k++;

                        }

                        break;

                    }

                    case 2:

                    {

                        System.out.print(i + 1 + ".  " + first + "*" + last + "=");

                        result1 = input1.nextInt();

                        result2 = first * last;

                        if (result1 == result2)

                            right++;

                        else {

                            error[j] = result2;

                            errorId[k] = i + 1;

                            j++;

                            k++;

                        }

                        break;

                    }

                    case 3:

                    {

                        if (last == 0) {

                            last = random.nextInt(99) + 1;

                        }

                        while (first % last != 0) {

                            first = random.nextInt(100);

                            last = random.nextInt(99) + 1;

                        }

                        System.out.print(i + 1 + ".  " + first + "/" + last + "=");

                        result1 = input1.nextInt();

                        result2 = first / last;

                        if (result1 == result2)

                            right++;

                        else {

                            error[j] = result2;

                            errorId[k] = i + 1;

                            j++;

                            k++;

                        }

                        break;

                    }

                    }

                }

                System.out.print("你一共答对了" + right + "道题\n" + "其中错误的题和其正确答案为:\n");

                for (int m = 0; m < j; m++) {

                    System.out.print(errorId[m] + ".  " + error[m] + "  ");

                    System.out.print("\n");

                }

            }

        }

    }

}

4.结果

5.总结:

 通过这次的结对编程是自己收获颇多!
posted on 2016-04-09 21:06  dendai  阅读(193)  评论(0编辑  收藏  举报