二柱子四则运算B级

package 测试;
import java.util.*;
public class Addition 
{
    
    public static void Repeat(int a[ ],int b[ ],int c[ ],int n)
    {
        Random rand=new Random( );
        int i,j;
        for(i=0;i<n;i++)
        {
            for(j=0;j<i;j++)
            {
                while(a[j]==a[i]&&b[j]==b[i]&&c[j]==c[i])
                {
                    a[i]=rand.nextInt(100);
                    break;
                }
            }
        }
    }
    
    public static void RandomInt(int a[ ],int b[ ],int c[ ],int n,int m,int d)
    {
        int i,temp;
        Random rand=new Random( );
        for(i=0;i<n;i++)
        {
            a[i]=rand.nextInt(d-m)+(m);
            b[i]=rand.nextInt(d-m)+(m);
            c[i]=rand.nextInt(4);
            if(a[i]<b[i])
            {
                temp=a[i];
                a[i]=b[i];
                b[i]=temp;
            }
            switch(c[i])
            {
            case 0:System.out.print(i+1+" "+a[i]+"+"+b[i]+"="+'\n');break;
            case 1:System.out.print(i+1+" "+a[i]+"-"+b[i]+"="+'\n');break;
            case 2:System.out.print(i+1+" "+a[i]+"×"+b[i]+"="+'\n');break;
            case 3:System.out.print(i+1+" "+a[i]+"/"+b[i]+"="+'\n');break;
            }
        }
    }
    
    public static void Exem(int a[ ],int b[ ],int c[ ],int error[ ],int n)
    {
        int i,g,h=0,k=0;
        int []count2=new int[100];
        int d[]=new int[100];
        Scanner scan=new Scanner(System.in);
        System.out.print("欢迎来到答题系统!"+'\n');
        for(i=0;i<n;i++)
        {
            switch(c[i])
            {
            case 0:
            {
                System.out.print(i+1+" "+a[i]+"+"+b[i]+"=");
                g=scan.nextInt( );
                if(g==a[i]+b[i])
                {
                    h++;
                    System.out.print("回答正确!"+'\n');
                }
                else
                {
                    count2[i]++;
                    System.out.print("回答错误!"+"   "+count2[i]+'\n');
                    error[k]=i;
                    k++;
                }
            }break;
            case 1:
            {
                System.out.print(i+1+" "+a[i]+"-"+b[i]+"=");
                g=scan.nextInt( );
                if(g==a[i]-b[i])
                {
                    h++;
                    System.out.print("回答正确!"+'\n');
                }
                else
                {
                    count2[i]++;
                    System.out.print("回答错误!"+"   "+count2[i]+'\n');
                    error[k]=i;
                    k++;
                }
            }break;
            case 2:
            {
                System.out.print(i+1+" "+a[i]+"*"+b[i]+"=");
                g=scan.nextInt( );
                if(g==a[i]*b[i])
                {
                    h++;
                    System.out.print("回答正确!"+'\n');
                }
                else
                {
                    count2[i]++;
                    System.out.print("回答错误!"+"   "+count2[i]+'\n');
                    error[k]=i;
                    k++;
                }
            }break;
            case 3:
                {
                    System.out.print(i+1+" "+a[i]+"/"+b[i]+"=");
                    g=scan.nextInt( );
                    if(g==a[i]/b[i])
                    {
                        h++;
                        System.out.print("回答正确!"+'\n');
                    }
                    else
                    {
                        count2[i]++;
                        System.out.print("回答错误!"+"   "+count2[i]+'\n');
                        error[k]=i;
                        k++;
                    }
                }break;
            }
        }
        System.out.print("正确率:"+(double)h/n+'\n');
        if((double)h/n!=1)
        {
            System.out.print("错题如下:"+'\n');
            Error(a,b,c,error,k,d,count2);
        }
        else
        {
            System.out.print("你真棒!全对了!"+'\n');
        }
    }
    
    static void Error(int a[ ],int b[ ],int c[ ],int d[ ],int n,int see[ ],int count2[ ])
    {
        int count=0,i,g;
        Scanner scan=new Scanner(System.in);
        for(i=0;i<n;i++)
        {
            switch(c[d[i]])
            {
            case 0:
            {
                System.out.print(d[i]+1+" "+a[d[i]]+"+"+b[d[i]]+"=");
                g=scan.nextInt( );
                if(g!=a[d[i]]+b[d[i]])
                {
                    count2[i]++;
                    System.out.print("回答错误!"+"   "+count2[i]+'\n');
                    see[count]=d[i];
                    d[count]=see[count];
                    count++;
                }
                else
                {
                    System.out.print("回答正确!"+'\n');
                }
            }break;
            case 1:
            {
                System.out.print(d[i]+1+" "+a[d[i]]+"-"+b[d[i]]+"=");
                g=scan.nextInt( );
                if(g!=a[d[i]]-b[d[i]])
                {
                    count2[i]++;
                    System.out.print("回答错误!"+"   "+count2[i]+'\n');
                    see[count]=d[i];
                    d[count]=see[count];
                    count++;
                }
                else
                {
                    System.out.print("回答正确!"+'\n');
                }
            }break;
            case 2:
            {
                System.out.print(d[i]+1+" "+a[d[i]]+"*"+b[d[i]]+"=");
                g=scan.nextInt( );
                if(g!=a[d[i]]*b[d[i]])
                {
                    count2[i]++;
                    System.out.print("回答错误!"+"   "+count2[i]+'\n');
                    see[count]=d[i];
                    d[count]=see[count];
                    count++;
                }
                else
                {
                    System.out.print("回答正确!"+'\n');
                }
            }break;
            case 3:
                {
                    System.out.print(d[i]+1+" "+a[d[i]]+"/"+b[d[i]]+"=");
                    g=scan.nextInt( );
                    if(g!=a[d[i]]/b[d[i]])
                    {
                        count2[i]++;
                        System.out.print("回答错误!"+"   "+count2[i]+'\n');
                        see[count]=d[i];
                        d[count]=see[count];
                        count++;
                    }
                    else
                    {
                        System.out.print("回答正确!"+'\n');
                    }
                }break;
            }
        }
        if(count!=0)
        {
            System.out.print("还有错题哦,小朋友,再做做吧!"+'\n');
             Error(a,b,c,d,count,see,count2);
        }
        
    }
    public static void main(String[] args) 
    {
        // TODO 自动生成的方法存根
        int n,i,m,d;
        int [ ]a=new int[100];
        int [ ]b=new int[100];
        int [ ]c=new int[100];
        int [ ]er1=new int[100];
        Scanner scan=new Scanner(System.in);
        System.out.print("Please print the number:");
        n=scan.nextInt( );
        System.out.print("请输入操作数范围:");
        m=scan.nextInt( );
        d=scan.nextInt( );
        RandomInt(a,b,c,n,m,d);
        Repeat(a,b,c,n);
        Exem(a,b,c,er1,n);
        System.out.print('\n');
    }
}

 

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