java - 因未知原因而出现错误

Question

尝试设计一个硬币翻转程序，要求用户说明他们想要翻转硬币的次数(翻转次数必须低于 1000 次)。然后，我从 1-10 中获取一个随机数，并将该数字分配给根据用户喜欢的翻转次数声明的每个数组索引。

我似乎遇到了三个错误，涉及无法解析 math.random 行上的符号。任何帮助将不胜感激。

import java.io.*;
import java.util.*;

public class coinFlip {

public static void main(String[] args) throws IOException {

    // declare in as a BufferedReader; used to gain input from the user
    BufferedReader in;
    in = new BufferedReader(new InputStreamReader(System.in));

    //declare variables
    int flips;
    int anArray[];
    int x;
    int r;

    System.out.println("How many times would you like to flip your coin?");
    flips = Integer.parseInt(in.readLine());

    if(flips <= 1000) {
        System.out.println("You want to flip " + flips + " times");
        anArray = new int[flips];

        for(x = 0; x <= flips; x++) {
            r = Math.round(Math.random()*9)+1;
            anArray[x] = r;
            System.out.println(anArray[x]);
        }
    }

  }

}

Answer 1

for(x = 0; x <= flips; x++)

应该是

for(x = 0; x < flips; x++)

flips[1000]是第 1001 个槽位，太多了。