Question

新手在这里，我正在制作一个程序，生成一个带有正确后缀的随机序号（I.E. 1st，2nd，3rd ......）我不能得到randomInt（）;上班。我一直收到以下错误：

    .\Random.java:6: error: class RandomInteger is public, should be declared in a  
file named RandomInteger.java  
public final class RandomInteger {  
             ^  
RandomNumSuffix.java:8: error: cannot access Random  
    Random rand = new Random();  
    ^  
  bad source file: .\Random.java  
    file does not contain class Random  
    Please remove or make sure it appears in the correct subdirectory of the  
sourcepath.

我在谷歌和Stack Overflow上搜索了无法找到解决方案。我甚至复制了并使用randomInt（）从互联网上编译其他程序;它们都会产生同样的错误。你能告诉我我做错了什么吗？这是我的程序的代码：

import java.util.*;

class RandNumSuffix
{
    public static void main(String [] args)
    {
        Scanner scan = new Scanner(System.in);
        Random rand  = new Random();
        String numSuffix = "";
        String answer = "";
        String repeat = "";
        int x;

        while(repeat.equalsIgnoreCase("yes")||repeat.equalsIgnoreCase("y" ))
        {
            x = rand.nextInt(1000000)+1;
            if (x == 1)
            {
                numSuffix = "st";
                answer    = x + numSuffix + ", ";
                System.out.print(answer);
            }
            if (x == 2)
            {
                numSuffix = "nd";
                answer    = x + numSuffix + ", ";
                System.out.print(answer);
            }
            if (x == 3)
            {
                numSuffix = "rd";
                answer    = x + numSuffix + ", ";
                System.out.print(answer);
            }
            if (x > 20 && x < 101 && x%10==1)
            {
                numSuffix = "st";
                answer    = x + numSuffix + ", ";
                System.out.print(answer);
            }
            if (x > 20 && x < 101 && x%10==2)
            {
                numSuffix = "nd";
                answer    = x + numSuffix + ", ";
                System.out.print(answer);
            }
            if (x > 20 && x < 101 && x%10==3)
            {
                numSuffix = "rd";
                answer    = x + numSuffix + ", ";
                System.out.print(answer);
            }
            if (x>100 && x%10==1 && x%100!=11)
            {
                numSuffix = "st";
                answer    = x + numSuffix + ", ";
                System.out.print(answer);
            }
            if (x>100 && x%10==2 && x%100!=12)
            {
                numSuffix = "nd";
                answer    = x + numSuffix + ", ";
                System.out.print(answer);
            }
            if (x>100 && x%10==3 && x%100!=13)
            {
                numSuffix = "rd";
                answer    = x + numSuffix + ", ";
                System.out.print(answer);
            }
            else
            {
                if (answer == "")
                {
                    numSuffix = "th";
                    System.out.print(x + numSuffix + ", ");
                }
            }


        answer = "";
        System.out.println("Would you like to generate another number?");
        answer = scan.nextLine();
        }
    }
}

欢迎批评我的节目。感谢。

Answer 1

您的Random.java文件应命名为RandomInteger.java。重命名文件并再次尝试编译。它应该工作正常。

当您将类声明为public class XYZ时，包含该代码的文件名必须命名为XYZ.java。

希望这有帮助！

Java中的随机整数错误

1 个答案: