java - 比较2个二维数组JAVA

Question

好的，程序的工作原理如下: 通过运行该程序，它将要求用户输入将玩乐透的玩家数量。例如，3。因此将创建 3 行数组和 6 列(默认列)。现在在 Lotto 数组中生成随机数字之后。然后它将生成一个中奖乐透。

问题出在这里: 我已经完成了生成玩家乐透和中奖乐透的部分。然而，我无法将中奖乐透与玩家乐透进行比较。例如:

玩家 0:1 15 30 41 56 12

玩家 1:31 65 78 43 29 8

玩家 2:41 28 1 6 38 14

中奖彩票:15 30 56 12 41 1

即使排序不准确，获胜者也应该是玩家 0。 但问题是我无法比较二维数组。

代码如下:

import javax.swing.*;
import java.util.*;


public class test{
    public static void main(String asd[]){

            int players = Integer.parseInt(JOptionPane.showInputDialog("Any NUMBER of PLAYERS\n[0] to exit"));
            while(players != 0)
            {
                int typeOfLotto = Integer.parseInt(JOptionPane.showInputDialog("Type:\n[42] - SixFortyTwo\n[45] - SixFortyFive\n" + 
                                                                "[49] - SixFortyNine\n[55] - SixFiftyFive"));
                String output="", playersLotto="", winning="";
                int taya = 6;
                int index;
                int[][] Lotto = new int[players][taya];
                int[][] winningLotto = new int[1][taya];
                for(index = 0; index<players; index++)
                {
                    for(int column = 0; column<6; column++)
                    {
                        Lotto[index][column] = numberGen(typeOfLotto,Lotto,index);
                        output += Lotto[index][column] + " ";
                    }
                    playersLotto += "Player " + index + ": " + output +"\n";
                    output="";
                }



                //winning lotto
                for(int column = 0; column<6; column++)
                {
                    winningLotto[0][column] = winningNumberGen(typeOfLotto,winningLotto);
                    winning += winningLotto[0][column] + " ";
                    if(column==5)
                        winning = "Winning lotto: " + winning;
                }


                String win = checking(Lotto,winningLotto,players);
                JOptionPane.showMessageDialog(null, playersLotto + "\n" + winning + "\n" + win);
                players = Integer.parseInt(JOptionPane.showInputDialog("Any NUMBER of PLAYERS\n[0] to exit"));
            }










    }

    public static int numberGen(int typeOfLotto,int Lotto[][],int index)
    {

        int random=0, loop=0;
        if(typeOfLotto == 42)
        {
            random = (int)(1+Math.random()*42);
                for(loop=0; loop<6; loop++)
                {
                    if(Lotto[index][loop] == random)
                        return numberGen(typeOfLotto,Lotto,index);
                }
        }

        return random;
    }
    //winning
    public static int winningNumberGen(int typeOfLotto,int winningLotto[][])
    {

        int random=0, loop=0;
        if(typeOfLotto == 42)
        {
            random = (int)(1+Math.random()*42);
                for(loop=0; loop<6; loop++)
                {
                    if(winningLotto[0][loop] == random)
                        return winningNumberGen(typeOfLotto,winningLotto);
                }
        }

        return random;
    }


    public static String checking(int Lotto[][], int winningLotto[][], int players)
    {
        int win[] = new int[6];
        int panalo=0;
        String winner="", output="";
        for(int index=0; index<players;index++)
        {
            for(int loop=0;loop<6;loop++)
            {

                if(winningLotto[0][0] == Lotto[index][loop])
                    win[loop] = Lotto[index][loop];
                if(winningLotto[0][1] == Lotto[index][loop])
                    win[loop] = Lotto[index][loop];
                if(winningLotto[0][2] == Lotto[index][loop])
                    win[loop] = Lotto[index][loop];
                if(winningLotto[0][3] == Lotto[index][loop])
                    win[loop] = Lotto[index][loop];
                if(winningLotto[0][4] == Lotto[index][loop])
                    win[loop] = Lotto[index][loop];
                if(winningLotto[0][5] == Lotto[index][loop])
                    win[loop] = Lotto[index][loop];
            }

        }

        if(win[0] > 0)
            panalo++;
        if(win[1] > 0)
            panalo++;
        if(win[2] > 0)
            panalo++;
        if(win[3] > 0)
            panalo++;
        if(win[4] > 0)
            panalo++;
        if(win[5] > 0)
            panalo++;


        if(panalo > 3)
        {
            for(int loop=0;loop<6;loop++)
            {
                winner += win[loop] + " ";
            }
            output = "Winner: " + winner;
        }
        else if(panalo < 3)
            output = "no winner";   

        return output;
    }

}

由于我还是大学一年级的学生，因此我对 java 的了解不多。那我可以问简单的代码吗？我想在 for 循环中进行比较。我只知道基本的。我希望最简单的代码就能做到。

更新了添加了 1 种方法来检查其是否适用于 1 名玩家，但不适用于 1 名以上的玩家。

更新我自己回答了。

Answer 1

首先排序中奖乐透

Arrays.sort(winninglotto);

然后对每个玩家的数字数组进行排序，然后查看它们是否等于中奖

Arrays.sort(playernumbers);
return Arrays.equals(playernumbers, winninglotto);

像这样:

public static String checking(int Lotto[][], int winningLotto[][], int players)
{
 Arrays.sort(winningLotto[0]);
 for(int i =0; i < players;i++){
     Arrays.sort(Lotto[i]);
    if(Arrays.equals(Lotto[i], winningLotto[0])){
       //we have a winnder
    }
 }
}