一、结对信息
1.1 结对编程成员：蒋勃超：201521123087谢季努：201521123079
1.2 项目开发的码云地址：https://gitee.com/jbc1132/jbc1/blob/6c8f278bedba41d70802c3334c0afd08b42eafba/jbc1.java1.3 选择修改的程序代码：个人博客地址5： ，源代码：1.4 码云提交记录：
二、
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需求分析：针对现有代码的改进分析，新开发功能的分析。
现有代码改进分析目前就发现了两个bug，一个是功能键“复习”，他会回到主页面再次进行做题，功能键与实际内容不符，所以修改了功能键名称为“继续”。另一个是他的正确率的计算有误，第一次运行程序的时候，计算出来的正确率结果是正确的，当点击了“继续”并再次做题之后，他的正确题数rn会累加，导致正确率计算出错，因此，我们在显示正确率之后令“rn=0.0”，避免他的累加。图片展示：原功能： -
程序设计：针对新开发功能做设计，建议使用思维导图。
原本打算用二叉树来做随机算术题的产生。但后来观察了源代码，如果要使用二叉树的话要把他们的源代码全部推翻重来，如此一来，将耗费大量的时间与精力，于是后来还是放弃了，选择了一个较为简单，而且契合恶源代码的方法。 -
代码如下：
import java.util.Random;import java.util.Scanner;public class jbc1 { public static void main(String[] args){ int x,y,z,p,g; int a,b,c,m,n; int h = 0; System.out.printf("请输入需要生成的题目数量："); Scanner d = new Scanner(System.in); x = d.nextInt(); for(int i = 0 ; i < x ; i++){ Random aa = new Random(); Random bb = new Random(); Random cc = new Random(); Random mm = new Random(); Random nn = new Random(); a = aa.nextInt(10); b = bb.nextInt(10); c = cc.nextInt(4); m = mm.nextInt(10); n = nn.nextInt(10); if(c==0){ if(m==0&&n==0){ m = mm.nextInt(10)+1; n = nn.nextInt(10)+1; if(a%m==0&&b%n==0){ y = a + b; System.out.printf(a+"+"+b+"= "); Scanner e1 = new Scanner(System.in); z = e1.nextInt(); if(z==y){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+y); } }else if(a%m==0&&b%n!=0){ String l = b + "/" + n; y = a*n + b ; System.out.printf(a+"+"+l+"= "); String k = y + "/"+ n; Scanner e6 = new Scanner(System.in); String j = e6.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else if(a%m!=0&&b%n==0){ String l = a + "/" + m; y = a + b*m; System.out.printf(l+"+"+b+"= "); String k = y + "/"+ m; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else{ String l1 = a + "/" + m; String l2 = b + "/" + n; y = a*n + b*m; System.out.printf(l1+"+"+l2+"= "); String k = y + "/"+ n*m; Scanner e8 = new Scanner(System.in); String j = e8.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } } }else if(m==0&&n!=0){ m = mm.nextInt(10)+1; if(a%m==0&&b%n==0){ y = a + b; System.out.printf(a+"+"+b+"= "); Scanner e1 = new Scanner(System.in); z = e1.nextInt(); if(z==y){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+y); } }else if(a%m==0&&b%n!=0){ String l = b + "/" + n; y = a*n + b ; System.out.printf(a+"+"+l+"= "); String k = y + "/"+ n; Scanner e6 = new Scanner(System.in); String j = e6.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else if(a%m!=0&&b%n==0){ String l = a + "/" + m; y = a + b*m; System.out.printf(l+"+"+b+"= "); String k = y + "/"+ m; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else{ String l1 = a + "/" + m; String l2 = b + "/" + n; y = a*n + b*m; System.out.printf(l1+"+"+l2+"= "); String k = y + "/"+ n*m; Scanner e8 = new Scanner(System.in); String j = e8.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } } }else if(m!=0&&n==0){ n = nn.nextInt(10)+1; if(a%m==0&&b%n==0){ y = a + b; System.out.printf(a+"+"+b+"= "); Scanner e1 = new Scanner(System.in); z = e1.nextInt(); if(z==y){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+y); } }else if(a%m==0&&b%n!=0){ String l = b + "/" + n; y = a*n + b ; System.out.printf(a+"+"+l+"= "); String k = y + "/"+ n; Scanner e6 = new Scanner(System.in); String j = e6.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else if(a%m!=0&&b%n==0){ String l = a + "/" + m; y = a + b*m; System.out.printf(l+"+"+b+"= "); String k = y + "/"+ m; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else{ String l1 = a + "/" + m; String l2 = b + "/" + n; y = a*n + b*m; System.out.printf(l1+"+"+l2+"= "); String k = y + "/"+ n*m; Scanner e8 = new Scanner(System.in); String j = e8.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } } }else{ if(a%m==0&&b%n==0){ y = a + b; System.out.printf(a+"+"+b+"= "); Scanner e1 = new Scanner(System.in); z = e1.nextInt(); if(z==y){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+y); } }else if(a%m==0&&b%n!=0){ String l = b + "/" + n; y = a*n + b ; System.out.printf(a+"+"+l+"= "); String k = y + "/"+ n; Scanner e6 = new Scanner(System.in); String j = e6.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else if(a%m!=0&&b%n==0){ String l = a + "/" + m; y = a + b*m; System.out.printf(l+"+"+b+"= "); String k = y + "/"+ m; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else{ String l1 = a + "/" + m; String l2 = b + "/" + n; y = a*n + b*m; System.out.printf(l1+"+"+l2+"= "); String k = y + "/"+ n*m; Scanner e8 = new Scanner(System.in); String j = e8.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } } } } if(c==1){ if(m==0&&n==0){ m = mm.nextInt(10)+1; n = nn.nextInt(10)+1; if(a%m==0&&b%n==0){ y = a - b; System.out.printf(a+"-"+b+"= "); Scanner e2 = new Scanner(System.in); z = e2.nextInt(); if(z==y){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+y); } }else if(a%m==0&&b%n!=0){ String l = b + "/" + n; y = a*n - b ; System.out.printf(a+"-"+l+"= "); String k = y + "/"+ n; Scanner e6 = new Scanner(System.in); String j = e6.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else if(a%m!=0&&b%n==0){ String l = a + "/" + m; y = a - b*m; System.out.printf(l+"-"+b+"= "); String k = y + "/"+ m; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else{ String l1 = a + "/" + m; String l2 = b + "/" + n; y = a*n - b*m; System.out.printf(l1+"-"+l2+"= "); String k = y + "/"+ n*m; Scanner e8 = new Scanner(System.in); String j = e8.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } } }else if(m==0&&n!=0){ m = mm.nextInt(10)+1; if(a%m==0&&b%n==0){ y = a - b; System.out.printf(a+"-"+b+"= "); Scanner e1 = new Scanner(System.in); z = e1.nextInt(); if(z==y){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+y); } }else if(a%m==0&&b%n!=0){ String l = b + "/" + n; y = a*n - b ; System.out.printf(a+"-"+l+"= "); String k = y + "/"+ n; Scanner e6 = new Scanner(System.in); String j = e6.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else if(a%m!=0&&b%n==0){ String l = a + "/" + m; y = a - b*m; System.out.printf(l+"-"+b+"= "); String k = y + "/"+ m; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else{ String l1 = a + "/" + m; String l2 = b + "/" + n; y = a*n - b*m; System.out.printf(l1+"-"+l2+"= "); String k = y + "/"+ n*m; Scanner e8 = new Scanner(System.in); String j = e8.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } } }else if(m!=0&&n==0){ n = nn.nextInt(10)+1; if(a%m==0&&b%n==0){ y = a - b; System.out.printf(a+"-"+b+"= "); Scanner e1 = new Scanner(System.in); z = e1.nextInt(); if(z==y){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+y); } }else if(a%m==0&&b%n!=0){ String l = b + "/" + n; y = a*n - b ; System.out.printf(a+"-"+l+"= "); String k = y + "/"+ n; Scanner e6 = new Scanner(System.in); String j = e6.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else if(a%m!=0&&b%n==0){ String l = a + "/" + m; y = a - b*m; System.out.printf(l+"-"+b+"= "); String k = y + "/"+ m; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else{ String l1 = a + "/" + m; String l2 = b + "/" + n; y = a*n - b*m; System.out.printf(l1+"-"+l2+"= "); String k = y + "/"+ n*m; Scanner e8 = new Scanner(System.in); String j = e8.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } } }else{ if(a%m==0&&b%n==0){ y = a - b; System.out.printf(a+"-"+b+"= "); Scanner e1 = new Scanner(System.in); z = e1.nextInt(); if(z==y){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+y); } }else if(a%m==0&&b%n!=0){ String l = b + "/" + n; y = a*n - b ; System.out.printf(a+"-"+l+"= "); String k = y + "/"+ n; Scanner e6 = new Scanner(System.in); String j = e6.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else if(a%m!=0&&b%n==0){ String l = a + "/" + m; y = a - b*m; System.out.printf(l+"-"+b+"= "); String k = y + "/"+ m; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else{ String l1 = a + "/" + m; String l2 = b + "/" + n; y = a*n - b*m; System.out.printf(l1+"-"+l2+"= "); String k = y + "/"+ n*m; Scanner e8 = new Scanner(System.in); String j = e8.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } } } } if(c==2){ if(m==0&&n==0){ m = mm.nextInt(10)+1; n = nn.nextInt(10)+1; if(a%m==0&&b%n==0){ y = a * b; System.out.printf(a+"x"+b+"= "); Scanner e3 = new Scanner(System.in); z = e3.nextInt(); if(z==y){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+y); } }else if(a%m==0&&b%n!=0){ String l = b + "/" + n; y = a*b ; System.out.printf(a+"x"+l+"= "); String k = y + "/"+ n; Scanner e6 = new Scanner(System.in); String j = e6.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else if(a%m!=0&&b%n==0){ String l = a + "/" + m; y = b*a; System.out.printf(l+"x"+b+"= "); String k = y + "/"+ m; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else{ String l1 = a + "/" + m; String l2 = b + "/" + n; y = a*b; System.out.printf(l1+"x"+l2+"= "); String k = y + "/"+ n*m; Scanner e8 = new Scanner(System.in); String j = e8.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } } }else if(m==0&&n!=0){ m = mm.nextInt(10)+1; if(a%m==0&&b%n==0){ y = a * b; System.out.printf(a+"x"+b+"= "); Scanner e1 = new Scanner(System.in); z = e1.nextInt(); if(z==y){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+y); } }else if(a%m==0&&b%n!=0){ String l = b + "/" + n; y = a*b; System.out.printf(a+"x"+l+"= "); String k = y + "/"+ n; Scanner e6 = new Scanner(System.in); String j = e6.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else if(a%m!=0&&b%n==0){ String l = a + "/" + m; y = a*b; System.out.printf(l+"x"+b+"= "); String k = y + "/"+ m; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else{ String l1 = a + "/" + m; String l2 = b + "/" + n; y = a*b; System.out.printf(l1+"x"+l2+"= "); String k = y + "/"+ n*m; Scanner e8 = new Scanner(System.in); String j = e8.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } } }else if(m!=0&&n==0){ n = nn.nextInt(10)+1; if(a%m==0&&b%n==0){ y = a * b; System.out.printf(a+"x"+b+"= "); Scanner e1 = new Scanner(System.in); z = e1.nextInt(); if(z==y){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+y); } }else if(a%m==0&&b%n!=0){ String l = b + "/" + n; y = a*b ; System.out.printf(a+"x"+l+"= "); String k = y + "/"+ n; Scanner e6 = new Scanner(System.in); String j = e6.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else if(a%m!=0&&b%n==0){ String l = a + "/" + m; y = a*b; System.out.printf(l+"x"+b+"= "); String k = y + "/"+ m; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else{ String l1 = a + "/" + m; String l2 = b + "/" + n; y = a*b; System.out.printf(l1+"x"+l2+"= "); String k = y + "/"+ n*m; Scanner e8 = new Scanner(System.in); String j = e8.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } } }else{ if(a%m==0&&b%n==0){ y = a * b; System.out.printf(a+"x"+b+"= "); Scanner e1 = new Scanner(System.in); z = e1.nextInt(); if(z==y){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+y); } }else if(a%m==0&&b%n!=0){ String l = b + "/" + n; y = a*b ; System.out.printf(a+"x"+l+"= "); String k = y + "/"+ n; Scanner e6 = new Scanner(System.in); String j = e6.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else if(a%m!=0&&b%n==0){ String l = a + "/" + m; y = a*b; System.out.printf(l+"x"+b+"= "); String k = y + "/"+ m; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else{ String l1 = a + "/" + m; String l2 = b + "/" + n; y = a*b; System.out.printf(l1+"x"+l2+"= "); String k = y + "/"+ n*m; Scanner e8 = new Scanner(System.in); String j = e8.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } } } } if(c==3){ if(b==0){ b = bb.nextInt(10)+1; if(m==0&&n==0){ m = mm.nextInt(10)+1; n = nn.nextInt(10)+1; if(a%m==0&&b%n==0){ if(a%b!=0){ String l=a+"/"+b; System.out.printf(a+"÷"+b+"= "); Scanner e4 = new Scanner(System.in); String p1 = e4.next(); if(p1.equals(l)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+l); } }else{ p = a / b; System.out.printf(a+"÷"+b+"= "); Scanner e5 = new Scanner(System.in); g = e5.nextInt(); if(p==g){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+p); } } }else if(a%m==0&&b%n!=0){ String l = b + "/" + n; if(a==0){System.out.println(a+"÷"+l+"= "); Scanner e6 = new Scanner(System.in); p = e6.nextInt(); if(p==0){System.out.println("回答正确！");h++; continue;}else{System.out.println("回答错误！正确答案是0");continue;} } y = a*n ; System.out.printf(a+"÷"+l+"= "); String k = y + "/"+ b; Scanner e6 = new Scanner(System.in); String j = e6.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else if(a%m!=0&&b%n==0){ String l = a + "/" + m; y = a; System.out.printf(l+"÷"+b+"= "); String k = y + "/"+ m*b; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else{ String l1 = a + "/" + m; String l2 = b + "/" + n; y = a*n; System.out.printf(l1+"÷"+l2+"= "); String k = y + "/"+ b*m; Scanner e8 = new Scanner(System.in); String j = e8.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } } }else if(m==0&&n!=0){ m = mm.nextInt(10)+1; if(a%m==0&&b%n==0){ if(a%b!=0){ String l=a+"/"+b; System.out.printf(a+"÷"+b+"= "); Scanner e4 = new Scanner(System.in); String p1 = e4.next(); if(p1.equals(l)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+l); } }else{ p = a / b; System.out.printf(a+"÷"+b+"= "); Scanner e5 = new Scanner(System.in); g = e5.nextInt(); if(p==g){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+p); } } }else if(a%m==0&&b%n!=0){ String l = b + "/" + n; if(a==0){System.out.println(a+"÷"+l+"= "); Scanner e6 = new Scanner(System.in); p = e6.nextInt(); if(p==0){System.out.println("回答正确！");h++; continue;}else{System.out.println("回答错误！正确答案是0");continue;} } y = a*n ; System.out.printf(a+"÷"+l+"= "); String k = y + "/"+ b; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else if(a%m!=0&&b%n==0){ String l = a + "/" + m; y = a; System.out.printf(l+"÷"+b+"= "); String k = y + "/"+ m*b; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else{ String l1 = a + "/" + m; String l2 = b + "/" + n; y = a*n; System.out.printf(l1+"÷"+l2+"= "); String k = y + "/"+ b*m; Scanner e8 = new Scanner(System.in); String j = e8.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } } }else if(m!=0&&n==0){ n = nn.nextInt(10)+1; if(a%m==0&&b%n==0){ if(a%b!=0){ String l=a+"/"+b; System.out.printf(a+"÷"+b+"= "); Scanner e4 = new Scanner(System.in); String p1 = e4.next(); if(p1.equals(l)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+l); } }else{ p = a / b; System.out.printf(a+"÷"+b+"= "); Scanner e5 = new Scanner(System.in); g = e5.nextInt(); if(p==g){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+p); } } }else if(a%m==0&&b%n!=0){ String l = b + "/" + n; if(a==0){System.out.println(a+"÷"+l+"= "); Scanner e6 = new Scanner(System.in); p = e6.nextInt(); if(p==0){System.out.println("回答正确！");h++; continue;}else{System.out.println("回答错误！正确答案是0");continue;} } y = a*n ; System.out.printf(a+"÷"+l+"= "); String k = y + "/"+ b; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else if(a%m!=0&&b%n==0){ String l = a + "/" + m; y = a; System.out.printf(l+"÷"+b+"= "); String k = y + "/"+ m*b; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else{ String l1 = a + "/" + m; String l2 = b + "/" + n; y = a*n; System.out.printf(l1+"÷"+l2+"= "); String k = y + "/"+ b*m; Scanner e8 = new Scanner(System.in); String j = e8.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } } }else{ if(a%m==0&&b%n==0){ if(a%b!=0){ String l=a+"/"+b; System.out.printf(a+"÷"+b+"= "); Scanner e4 = new Scanner(System.in); String p1 = e4.next(); if(p1.equals(l)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+l); } }else{ p = a / b; System.out.printf(a+"÷"+b+"= "); Scanner e5 = new Scanner(System.in); g = e5.nextInt(); if(p==g){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+p); } } }else if(a%m==0&&b%n!=0){ String l = b + "/" + n; if(a==0){System.out.println(a+"÷"+l+"= "); Scanner e6 = new Scanner(System.in); p = e6.nextInt(); if(p==0){System.out.println("回答正确！");h++; continue;}else{System.out.println("回答错误！正确答案是0");continue;} } y = a*n ; System.out.printf(a+"÷"+l+"= "); String k = y + "/"+ b; Scanner e6 = new Scanner(System.in); String j = e6.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else if(a%m!=0&&b%n==0){ String l = a + "/" + m; y = a; System.out.printf(l+"÷"+b+"= "); String k = y + "/"+ m*b; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else{ String l1 = a + "/" + m; String l2 = b + "/" + n; y = a*n; System.out.printf(l1+"÷"+l2+"= "); String k = y + "/"+ b*m; Scanner e8 = new Scanner(System.in); String j = e8.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } } } }else{ //p =(float) a / b; if(m==0&&n==0){ m = mm.nextInt(10)+1; n = nn.nextInt(10)+1; if(a%m==0&&b%n==0){ if(a%b!=0){ String l=a+"/"+b; System.out.printf(a+"÷"+b+"= "); Scanner e4 = new Scanner(System.in); String p1 = e4.next(); if(p1.equals(l)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+l); } }else{ p = a / b; System.out.printf(a+"÷"+b+"= "); Scanner e5 = new Scanner(System.in); g = e5.nextInt(); if(p==g){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+p); } } }else if(a%m==0&&b%n!=0){ String l = b + "/" + n; y = a*n ; System.out.printf(a+"÷"+l+"= "); String k = y + "/"+ b; Scanner e6 = new Scanner(System.in); String j = e6.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else if(a%m!=0&&b%n==0){ String l = a + "/" + m; if(a==0){System.out.println(a+"÷"+l+"= "); Scanner e6 = new Scanner(System.in); p = e6.nextInt(); if(p==0){System.out.println("回答正确！");h++; continue;}else{System.out.println("回答错误！正确答案是0");continue;} } y = a; System.out.printf(l+"÷"+b+"= "); String k = y + "/"+ m*b; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else{ String l1 = a + "/" + m; String l2 = b + "/" + n; y = a*n; System.out.printf(l1+"÷"+l2+"= "); String k = y + "/"+ b*m; Scanner e8 = new Scanner(System.in); String j = e8.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } } }else if(m==0&&n!=0){ m = mm.nextInt(10)+1; if(a%m==0&&b%n==0){ if(a%b!=0){ String l=a+"/"+b; System.out.printf(a+"÷"+b+"= "); Scanner e4 = new Scanner(System.in); String p1 = e4.next(); if(p1.equals(l)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+l); } }else{ p = a / b; System.out.printf(a+"÷"+b+"= "); Scanner e5 = new Scanner(System.in); g = e5.nextInt(); if(p==g){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+p); } } }else if(a%m==0&&b%n!=0){ String l = b + "/" + n; if(a==0){System.out.println(a+"÷"+l+"= "); Scanner e6 = new Scanner(System.in); p = e6.nextInt(); if(p==0){System.out.println("回答正确！");h++; continue;}else{System.out.println("回答错误！正确答案是0");continue;} } y = a*n ; System.out.printf(a+"÷"+l+"= "); String k = y + "/"+ b; Scanner e6 = new Scanner(System.in); String j = e6.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else if(a%m!=0&&b%n==0){ String l = a + "/" + m; y = a; System.out.printf(l+"÷"+b+"= "); String k = y + "/"+ m*b; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else{ String l1 = a + "/" + m; String l2 = b + "/" + n; y = a*n; System.out.printf(l1+"÷"+l2+"= "); String k = y + "/"+ b*m; Scanner e8 = new Scanner(System.in); String j = e8.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } } }else if(m!=0&&n==0){ n = nn.nextInt(10)+1; if(a%m==0&&b%n==0){ if(a%b!=0){ String l=a+"/"+b; System.out.printf(a+"÷"+b+"= "); Scanner e4 = new Scanner(System.in); String p1 = e4.next(); if(p1.equals(l)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+l); } }else{ p = a / b; System.out.printf(a+"÷"+b+"= "); Scanner e5 = new Scanner(System.in); g = e5.nextInt(); if(p==g){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+p); } } }else if(a%m==0&&b%n!=0){ String l = b + "/" + n; if(a==0){System.out.println(a+"÷"+l+"= "); Scanner e6 = new Scanner(System.in); p = e6.nextInt(); if(p==0){System.out.println("回答正确！");h++; continue;}else{System.out.println("回答错误！正确答案是0");continue;} } y = a*n ; System.out.printf(a+"÷"+l+"= "); String k = y + "/"+ b; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else if(a%m!=0&&b%n==0){ String l = a + "/" + m; y = a; System.out.printf(l+"÷"+b+"= "); String k = y + "/"+ m*b; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else{ String l1 = a + "/" + m; String l2 = b + "/" + n; y = a*n; System.out.printf(l1+"÷"+l2+"= "); String k = y + "/"+ b*m; Scanner e8 = new Scanner(System.in); String j = e8.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } } }else{ if(a%m==0&&b%n==0){ if(a%b!=0){ String l=a+"/"+b; System.out.printf(a+"÷"+b+"= "); Scanner e4 = new Scanner(System.in); String p1 = e4.next(); if(p1.equals(l)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+l); } }else{ p = a / b; System.out.printf(a+"÷"+b+"= "); Scanner e5 = new Scanner(System.in); g = e5.nextInt(); if(p==g){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+p); } } }else if(a%m==0&&b%n!=0){ String l = b + "/" + n; if(a==0){System.out.println(a+"÷"+l+"= "); Scanner e6 = new Scanner(System.in); p = e6.nextInt(); if(p==0){System.out.println("回答正确！");h++; continue;}else{System.out.println("回答错误！正确答案是0");continue;} } y = a*n ; System.out.printf(a+"÷"+l+"= "); String k = y + "/"+ b; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else if(a%m!=0&&b%n==0){ String l = a + "/" + m; y = a; System.out.printf(l+"÷"+b+"= "); String k = y + "/"+ m*b; Scanner e7 = new Scanner(System.in); String j = e7.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } }else{ String l1 = a + "/" + m; String l2 = b + "/" + n; y = a*n; System.out.printf(l1+"÷"+l2+"= "); String k = y + "/"+ b*m; Scanner e8 = new Scanner(System.in); String j = e8.next(); if(j.equals(k)){ System.out.println("回答正确！"); h++; }else{ System.out.println("回答错误！正确答案是"+k); } } } } } } System.out.println("总共"+x+"题，"+"恭喜答对"+h+"题"); System.out.println("正确率为"+(float)h/x); }}显示结果：
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PSP表格
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小结感受：结对编程真的能够带来1+1>2的效果吗？通过这次结对编程，请谈谈你的感受和体会。
答：这次的结对编程让我深深感觉到编程的难度，并且有着许多需要自己掌握的地方，现在的我需要继续的努力来弥补自己的不足和落后
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