随机抽取游戏

随机抽取游戏

 

//随机抽奖游戏。
import java.util.*;
public class LotteryDrawing 
{
     public static void main(String[] args) 
    {
     Scanner in=new Scanner(System.in);
     
     System.out.print("How many numbers do you need to draw?");
     int k=in.nextInt();
     System.out.print("What is the highest number you can draw?");
     int n=in.nextInt();
     
     int[] numbers=new int[n];
     for(int i=0;i<numbers.length;i++)
     {
    	 numbers[i]=i+1;
     }
     int[] result=new int[k];
     for(int i=0;i<result.length;i++)
     {
    	 int r=(int)(Math.random()*n);
    	 result[i]=numbers[r];
    	 numbers[r]=numbers[n-1];
    	 n--;
     }
     Arrays.sort(result);
     System.out.println("Bet the following combination.It\'ll make you rich!");

     for(int i=0;i<result.length;i++)
    	 System.out.print(result[i]);
	}
}