java实现随机输出300题四则运算
时间：2021-05-05 15:36:51 | 栏目：JAVA代码 | 点击：次
话不多说，请看代码：
package demo;
import java.util.Random;
public class math {
public static void main(String[] args) {
String[] operate=new String[]{"+","-","×","÷"};
int[] numbers=new int[1000];
for(int i=1;i<=1000;i++){
numbers[i-1]=i;
}
Random r=new Random();
for(int i=0;i<300;i++){
System.out.println(numbers[r.nextInt(1000)]+operate[r.nextInt(4)]+numbers[r.nextInt(1000)]+"=");
}
}
}
