package practice;
import java.util.Random;
public class LuckNumbers {
public static void main(String[] args) {
Random rd = new Random();
int rdNumArr[] = new int[10];
int plus = 0; // 统计正数的个数
for (int i = 0; i < rdNumArr.length; i++) {
rdNumArr[i] = rd.nextInt(21) - 10;
if (rdNumArr[i] >= 0) {
plus++;
}
}
System.out.println("随机结果：");
for (int i = 0; i < rdNumArr.length; i++) {
System.out.print(rdNumArr[i] + " ");
}
if (plus > 0 && plus <= 3) {
System.out.println("\n\n提示：本次随机共" + plus + "个正数，运气一般！");
} else if (plus >= 4 && plus <= 7) {
System.out.println("\n\n提示：本次随机共" + plus + "个正数，运气不错！");
} else if (plus > 7) {
System.out.println("\n\n提示：本次随机共" + plus + "个正数，运气逆天！");
}
}
}
Processed:
0.009, SQL:
9
