如何计算Java中某个范围内随机数重复的可能性
要获取范围内随机数的重复数，请循环并创建两个Random类对象-
使用nextInt()得到的下一个数字-
intrandVal1 = new Random().nextInt(50); intrandVal2 = new Random().nextInt(50);
现在，比较以上两个数字-
if (randVal1 == randVal2) {
System.out.println("Duplicate number = "+randVal1);
}以上所有内容都将在循环中完成-
for (int i = 1; i <= 50; i++) {
intrandVal1 = new Random().nextInt(50);
intrandVal2 = new Random().nextInt(50);
if (randVal1 == randVal2) {
System.out.println("Duplicate number = "+randVal1);
}
}示例
import java.util.Random;
public class Demo {
public static void main(String[] args) {
for (int i = 1; i<= 50; i++) {
int randVal1 = new Random().nextInt(50);
int randVal2 = new Random().nextInt(50);
if (randVal1 == randVal2) {
System.out.println("Duplicate number = "+randVal1);
}
}
}
}输出结果Duplicate number = 35 Duplicate number = 28