2007年6月6日星期三

最新推荐文章于 2021-06-19 05:16:30 发布

原创最新推荐文章于 2021-06-19 05:16:30 发布 · 320 阅读

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本文介绍了一个简单的彩票号码生成器程序，分别用Java和C#实现。该程序能够随机选择六个红球号码（1至33之间）和一个蓝球号码（1至16之间），并确保每次生成的号码都是唯一的。通过此程序，可以模拟彩票购买过程中的随机选号。

==============Fucai.java====================

import java.util.Arrays;
public class Fucai {

private Integer[] redBall;

public Fucai()
{
   redBall = new Integer[33];
   for(int i = 0;i < 33;i++)
   {
    redBall[i] = i+1;
   }

}

public int[] getRedBallArray()
{
int[] redBallArray = new int[6];

   for(int i = 0;i < 6;i++)
   {
    int temp;
    int index = (int)(Math.random()*(33-1-i));
    redBallArray[i] = redBall[index];
    temp = redBall[index];
    redBall[index] = redBall[33-1-i];
    redBall[33-1-i] = temp;
    //System.out.println(index);
   }
   return redBallArray;
}

public int getBlueBall()
{
   return (int)(Math.random()*(16));
}

public static void main(String[] args)
{
   Fucai fucai = new Fucai();
   int[] redBallArray = fucai.getRedBallArray();
   Arrays.sort(redBallArray);
   System.out.print("红球：");
   for(int i = 0;i < redBallArray.length;i++)
   {
    String numStr = redBallArray[i] + "";
    if(redBallArray[i]<10)
     numStr = "0" + redBallArray[i];
    System.out.print(numStr+",");
   }
   System.out.print("篮球："+ fucai.getBlueBall());
   System.out.println();
   System.out.println("祝你好运！！！");
}
}

================Fucai.cs===================

using System;
using System.Collections.Generic;
using System.Text;

namespace FucaiApp
{
     class Fucai
     {
         private int[] redBall;

         public Fucai()
         {
             redBall = new int[33];
             for (int i = 0; i < 33; i++)
             {
                 redBall[i] = i + 1;
             }

}

         public String[] getRedBallArray()
         {
             int[] redBallArray = new int[6];

             for (int i = 0; i < 6; i++)
             {
                 int temp;
                 int index = new System.Random().Next(33 - 1 - i);
                 redBallArray[i] = redBall[index];
                 temp = redBall[index];
                 redBall[index] = redBall[33 - 1 - i];
                 redBall[33 - 1 - i] = temp;
             }
             System.Array.Sort(redBallArray);

             String[] redStr = new String[6];
             for (int i = 0; i < redBallArray.Length; i++)
             {
                 String numStr = redBallArray[i] + "";
                 if (redBallArray[i] < 10)
                     numStr = "0" + redBallArray[i];
                 redStr[i] = numStr;
             }
             return redStr;
         }

         public String getBlueBall()
         {
             int blue = new System.Random().Next(1,16);
             if (blue < 10)
                 return "0" + blue.ToString();
             else
                 return blue.ToString();
         }
     }
}