您好，感谢所有
信息：
此程序适用于课程作业
分配是使用数组来模拟彩票
我使用一维的整数数组来表示彩票上的数字
我指定的方法是指定的，所以我不能将任何fxn从一种方法移动到另一种方法（例如：我无法确定用户是否在主方法中而不是在指定方式中赢得了抽奖方法）
问题：
我得到的 - 显示方法显示我的用户输入的数组从最小到最大
排序我想要的 - 用户输入的原始数组
我的代码：
import java.util.Scanner;
import java.util.Random;
public class Program2 {
/*notes
the numbers do not have to match in order
you must validate all user input
numeric output should be displayed with commas
the code should be written using efficient processing
use comments, naming conventions, and program structure
*/
//main method
public static void main(String[] args) {
Scanner kbr = new Scanner(System.in); //scanner object for user input
boolean auto = false;
int choice;
int[] yourTix;
int[] winningTix;
int tries = 0;
int[] freq = new int[20];
//display lottery info
System.out.println("Welcome to the Wacky Lottery Program!");
System.out.println("1 - Pick my own");
System.out.println("2 - Computer picks for me");
//validation loop
do {
choice = kbr.nextInt();
if (choice < 1 || choice > 2)
System.out.println("Invalid input. please enter either 1 or 2");
} while (choice < 1 || choice > 2);
//selecting automatic choice or not
if (choice == 2)
auto = false;
else
auto = true;
//generating your ticket
yourTix = yourTix(auto);
//this do/while loop keeps generating winning tickets until you win
do {
//get new winning ticket
winningTix = winningTix();
//check frequency of each number and add to the frequency accumulator array
for (int i = 0; i < winningTix.length; i++) {
//accumulate frequency @ index that is equal to winningTix[i]
int num = winningTix[i] - 1;
freq[num]++;
}
//accumulating the number of tries
tries++;
} while (win(yourTix, winningTix) == false);
//using the display method to print out the stats of this lottery
display(yourTix, winningTix, tries, freq);
}
//method that determines the user's ticket numbers
public static int[] yourTix(boolean auto) {
Random r = new Random();
Scanner kbr = new Scanner(System.in); //scanner object for user input
int[] tix = new int[5]; //creating a new array of integers with 5 integers
//this loop gets the user's input for each number on the ticket
for (int i = 0; i < tix.length; i++) {
if (auto == true) {
System.out.print("Please enter number " + (i + 1) + ": ");
do {
tix[i] = kbr.nextInt();
if (tix[i] < 1 || tix[i] > 20)
System.out.println("Invalid input. Please only enter 1-20");
} while (tix[i] < 1 || tix[i] > 20);
} else {
tix[i] = r.nextInt(19) + 1;
}
}
//return the ticket array
return tix;
}
//method to determine the winning numbers
public static int[] winningTix() {
Random r = new Random();
int[] winningTix = new int[5];
for (int i = 0; i < winningTix.length; i++)
winningTix[i] = r.nextInt(20) + 1;
return winningTix;
}
//method to determine if the user won
public static boolean win(int[] yt, int[] wt) {
boolean same = true;
int startScan, index, minIndex, minValue;
//sort user's array numerical order
for (startScan = 0; startScan < (yt.length - 1); startScan++) {
minIndex = startScan;
minValue = yt[startScan];
for (index = startScan + 1; index < yt.length; index++) {
if (yt[index] < minValue) {
minValue = yt[index];
minIndex = index;
}
}
yt[minIndex] = yt[startScan];
yt[startScan] = minValue;
}
//sort computer's array numerical order
for (startScan = 0; startScan < (wt.length - 1); startScan++) {
minIndex = startScan;
minValue = wt[startScan];
for (index = startScan + 1; index < wt.length; index++) {
if (wt[index] < minValue) {
minValue = wt[index];
minIndex = index;
}
}
wt[minIndex] = wt[startScan];
wt[startScan] = minValue;
}
index = 0; // Loop control variable
// determine whether the elements contain the same data
while (same && index < wt.length) {
if (yt[index] != wt[index])
same = false;
index++;
}
//return whether or not the winning array and the user's array matches
return same;
}
//method that displays and writes to file
public static void display(int[] winning, int[] user, int tries, int[] freq) {
//message indicating the win
System.out.println("You won!");
System.out.println();
//display winning lottery ticket numbers in their original order
System.out.println("Here is the winning ticket");
for (int i = 0; i < winning.length; i++)
System.out.println(winning[i]);
System.out.println();
//display user numbers in the original order
System.out.println("Here is your ticket");
for (int i = 0; i < user.length; i++)
System.out.println(user[i]);
System.out.println();
//the number of times it took to get a match with a winning ticket
System.out.printf("It took %,d tries to win", tries);
System.out.println();
//the number of times each value 1-20 was generated for a winning lottery ticket
for (int i = 0; i < freq.length; i++) {
System.out.printf("The number %d was generated %,d times", i + 1, freq[i]);
System.out.println();
}
//this should also be written to a file
//this should also be written to a file
//note: if tie, display all the numbers
}
}
答案 0 :(得分：0)
在你的方法中：
public static boolean win（int [] yt，int [] wt）{
您正在对阵列进行排序：
//sort user's array numerical order
for (startScan = 0; startScan < (yt.length - 1); startScan++) {
minIndex = startScan;
minValue = yt[startScan];
for (index = startScan + 1; index < yt.length; index++) {
if (yt[index] < minValue) {
minValue = yt[index];
minIndex = index;
}
}
yt[minIndex] = yt[startScan];
yt[startScan] = minValue;
}
//sort computer's array numerical order
for (startScan = 0; startScan < (wt.length - 1); startScan++) {
minIndex = startScan;
minValue = wt[startScan];
for (index = startScan + 1; index < wt.length; index++) {
if (wt[index] < minValue) {
minValue = wt[index];
minIndex = index;
}
}
这就是为什么它会对数组进行排序。
希望有所帮助：）
答案 1 :(得分：0)
您正在使用public static boolean win(int[] yt, int[] wt) {
yt = yt.clone(); // take a copy first
wt = wt.clone(); // take a copy first
方法对数组进行排序。如果您不想对原始数组进行排序，并且您只是为了进行比较，请尝试对副本进行排序。
您可以添加这些行，以便只对副本进行操作。
public static int[] copy(int[] array) {
int[] copy = new int[array.length];
for (int i = 0; i < array.length; i++)
copy[i] = array[i];
return copy;
}
public static boolean win(int[] yt, int[] wt) {
yt = copy(yt); // take a copy first
wt = copy(wt); // take a copy first
使用您已经使用的代码，您可以编写
$con = mysqli_connect("localhost", "root", "")
mysqli_select_db($con,"online_ticket");