实现随机生成6个限定范围的数,加入到集合遍历输出
import java.util.ArrayList;
import java.util.Random;
import java.util.Scanner;
public class HelloWorld {
public static void main(String[] args) {
//创建Arraylist
//创建随机数
ArrayList<Integer> number = new ArrayList<>();
Random r = new Random();
for (int i = 0; i < 7; i++) {
int a = r.nextInt(33);
number.add(a);
}
for (int i = 0; i < 7; i++) {
System.out.print(number.get(i)+" ");
}
}
}