Java 彩票重复程序

Question

我需要这个彩票程序重复一定次数然后停止，但我在放置 for 循环的位置上遇到了麻烦(如果这就是我应该使用的)。如何显示 0、1、2、3、4 或 5 个数字在所有运行中匹配的次数百分比？

    package assignment5;
    import javax.swing.JOptionPane;

    import java.util.Random;
    public class assignment5
    {
public static void main(String[] args)
{
    lottery pic=new lottery();
    pic.Get_player_numbers();
    pic.Get_jackpot_number();
    pic.Check_winner ();
    pic.Write_data();

}
    }
    class lottery
    {

int[] picks= new int[5];
int[] cpick=new int[5];
int i;
int j,c;
int match=0;

void Get_player_numbers ()

{
    int ctemp,cdupflag=0;
    for(j=0;j<=4;++j)
    {
        //YOU DO NOT NEED THE CNUMBERFLAG
        //IF YOU GENERATED THE NUMBERS CORRECLTY, THE COMPUTER WILL NOT GENERATE ONE ABOVE 99 OR LESS THAN 1
       cdupflag=0;
        while(cdupflag==0)
         {
            ctemp = (int)Math.round(Math.random()*99)+1;
            cdupflag=1;
            for(c=0;c<=j;++c)
               {
                 if(ctemp==cpick[c])
                    {
                     cdupflag=0;
                    }
                }//inner for loop
            if(cdupflag==1) 
                   cpick[j]=ctemp;
          }
    }
    String Jackpot="User Lottery numbers are: "+"\n";
    //String computer = "";
    for(j=0;j<=4;++j)
    {
        if(j==4)
            Jackpot=Jackpot+cpick[j];   
        else
            Jackpot=Jackpot+cpick[j]+"-";
    }

    JOptionPane.showMessageDialog(null,Jackpot,"Output:",JOptionPane.INFORMATION_MESSAGE);

}

//void jackpot()
void Get_jackpot_number()
{

    int ctemp,cdupflag=0;
    for(j=0;j<=4;++j)
    {
        //YOU DO NOT NEED THE CNUMBERFLAG
        //IF YOU GENERATED THE NUMBERS CORRECLTY, THE COMPUTER WILL NOT GENERATE ONE ABOVE 99 OR LESS THAN 1
       cdupflag=0;
        while(cdupflag==0)
         {
            ctemp = (int)Math.round(Math.random()*99)+1;
            cdupflag=1;
            for(c=0;c<=j;++c)
               {
                 if(ctemp==cpick[c])
                    {
                     cdupflag=0;
                    }
                }//inner for loop
            if(cdupflag==1) 
                   cpick[j]=ctemp;
          }
    }
    String Jackpot="Computer Lottery numbers are: "+"\n";
    //String computer = "";
    for(j=0;j<=4;++j)
    {
        if(j==4)
            Jackpot=Jackpot+cpick[j];   
        else
            Jackpot=Jackpot+cpick[j]+"-";
    }

    JOptionPane.showMessageDialog(null,Jackpot,"Output:",JOptionPane.INFORMATION_MESSAGE);

}


void Check_winner ()
{

    for(int i=0;i<=4;++i)
    {
        for(int j=0;j<=4;++j)
        {
            if(picks[i]==cpick[j])
            {
                match=match+1;
            }
        }
    }

}


void Write_data ()
{
    String print = "";

    if(match==0)
    {
        print=print+"There is no match"+"\n";
        print=print+"please try again "+"\n";
    }
    else
    if(match==1)
    {
        print=print+"There is one match"+"\n";
        print=print+"You won 100 Dollars "+"\n";
    }
    else 
        if(match==2)
        {
            print=print+"There are two matches"+"\n";
            print=print+"You won 1,000 Dollars"+"\n";
        }
        else
            if(match==3)
            {
                print=print+"There are three matches"+"\n";
                print=print+"You won 10,000 Dollars "+"\n";
            }
            else
                if(match==4)
                {
                    print=print+"There are four matches"+"\n";
                    print=print+"You won 100,000 Dollars "+"\n";
                }
                else
                    if(match==5)
                    {
                        print=print+"There are five matches"+"\n";
                        print=print+"You won 1,000,000 Dollars"+"\n";
                    }
    JOptionPane.showMessageDialog(null,print,"Output:",JOptionPane.INFORMATION_MESSAGE);
}}

    //end of class lottery

Answer 1

至于循环:它应该主要围绕您为彩票所做的事情

public static void main(String[] args)
{
    for(int i = 0; i < [NumberOfRepeats]; i++)
    {
        lottery pic=new lottery();
        pic.Get_player_numbers();
        pic.Get_jackpot_number();
        pic.Check_winner ();
        pic.Write_data();
    }
}

至于计算百分比，您需要修改“write_data()”的代码来存储或返回匹配数(可能在数组中)，然后除以每个匹配的运行总数。