随堂小测加减乘除

短命女 2023-08-17 17:12 2阅读 0赞

首先思路：先试用了rand产生随机数种子来产生随机数，然后定义了十个数组分别来进行查重和存储数据

package Ktang;  
import java.util.Random;  
import java.util.Scanner;  
public class Student \{  
static final int x = 100000;  
public static void main(String\[\] args) \{  
// TODO Auto-generated method stub  
Random r = new Random(1);  
int i=0;  
int j=0;  
Scanner sc=new Scanner(System.in);  
int a;  
int b;  
int c=0;  
int date1\[\]=new int\[x\];  
int date2\[\]=new int\[x\];  
int jia1\[\]=new int\[x\];  
int jia2\[\]=new int\[x\];  
int jian1\[\]=new int\[x\];  
int jian2\[\]=new int\[x\];  
int cheng1\[\]=new int\[x\];  
int cheng2\[\]=new int\[x\];  
int chu1\[\]=new int\[x\];  
int chu2\[\]=new int\[x\];  
System.out.println("请输入你想要多少的题数和一行个数");  
a=sc.nextInt();  
b=sc.nextInt();  
for(i=0;i<a;i++)  
\{  
int ran1 = r.nextInt(100);  
int ran2 = r.nextInt(100);  
date1\[i\]=ran1;  
date2\[i\]=ran2;  
jia1\[i\]= ran1;  
jia2\[i\]=ran2;  
jian1\[i\]=ran1;  
jian2\[i\]=ran2;  
cheng1\[i\]=ran1;  
cheng2\[i\]=ran2;  
chu1\[i\]=ran1;  
chu2\[i\]=ran2;  
\}  
while(c<=a)  
\{  
c++;  
for(i=1;i<=b;i++)  
\{  
int ran2 = r.nextInt(3);

System.out.println("第"+i+"个");  
switch(ran2)  
\{  
case 0 :for(j=a;j>=0;j--)  
\{if(jia1\[j\]!=date1\[i\]&&jia2\[j\]!=date2\[i\])  
\{System.out.println(date1\[i\]+"+"+date2\[i\]+"=");\}\}  
break;  
  
case 1 :for(j=a;j>=0;j--)  
\{if(jian1\[j\]!=date1\[i\]&&jian2\[j\]!=date2\[i\])  
\{if(date1\[i\]>=date2\[i\])  
\{  
System.out.println(date1\[i\]+"-"+date2\[i\]+"=");  
break;\}  
else  
\{System.out.println(date1\[i\]+"-"+date2\[i\]+"=");  
break;  
\}\}\}  
case 2 :for(j=a;j>=0;j--)  
\{if(cheng1\[j\]!=date1\[i\]&&cheng2\[j\]!=date2\[i\])  
System.out.println(date1\[i\]+"\*"+date2\[i\]+"=");  
break;\}  
case 3 :  
for(j=a;j>=0;j--)  
\{if(chu1\[j\]!=date1\[i\]&&chu2\[j\]!=date2\[i\])  
      System.out.println(date1\[i\]+"/"+date2\[i\]+"=");  
break;  
\}  
\}  
\}  
\}  
\}  
\}

转载于:https://www.cnblogs.com/sunhongbin/p/11539863.html