我正在编写一个内存匹配游戏，用户输入的坐标试图匹配网格上的图块，我试图在客户端和服务器之间来回发送坐标，出于某种原因，我得到了在循环的第二次迭代期间服务器文件中的第124行上的InputMismatchException，其中我从客户端文件读取整数坐标，这对我没有意义，因为服务器文件读取坐标正常而没有异常在第一次迭代期间抛出，我也在第一次读取它时打印坐标写入以显示它。我不熟悉这个例外，我不知道该怎么做。
这是服务器文件
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.PrintStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Random;
import java.util.Scanner;
public class MemoryGame {
static int[][] cards = new int[4][4];
static boolean upDown[][] = new boolean[4][4];
static Scanner s = new Scanner(System.in);
public static void main(String[] args) {
try{
System.out.println("a");
ServerSocket s1 = new ServerSocket(8080);
System.out.println("b");
Socket s2 = s1.accept();
System.out.println("c");
Scanner sc=new Scanner(s2.getInputStream());
System.out.println("d");
PrintStream p = new PrintStream(s2.getOutputStream());
//DataInputStream is = new DataInputStream(s2.getInputStream());
//DataOutputStream os = new DataOutputStream(s2.getOutputStream());
System.out.println("e");
int initialAmount = 0;
System.out.println("Connected");
p.println("connected");
//os.writeUTF("connected");
//String accept = is.readUTF();
String accept = sc.nextLine();
//setup();
for (int i = 0; i < 4; i++) {
for (int a = 0; a < 4; a++) {
upDown[i][a]=false;
}
}
//randomize
int num[] = {1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8};
int[][] cards2 = new int[4][4];
Random random = new Random();
int temp, t;
for (int j = 0; j <= 20; j++) {
for (int x = 0; x < 16; x++) { //Randomize the card order
t = random.nextInt(1000) % 15;
temp = num[x];
num[x] = num[t];
num[t] = temp;
}
t = 0;
for (int r = 0; r < 4; r++) // Cards receive Numbers
{
for (int s = 0; s < 4; s++) {
cards2[r][s] = num[t];
t = t + 1;
}
}
}
cards = cards2;
//shuffle
int start[] = {1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 8};
int cards3[][] = new int[4][4];
Random ran = new Random();
int tmp, i;
for (int s = 0; s <= 20; s++) {
for (int x = 0; x < 16; x++) //randomize the card placements
{
i = ran.nextInt(100000) % 15;
tmp = start[x];
start[x] = start[i];
start[i] = tmp;
}
}
i = 0;
for (int r = 0; r < 4; r++) // put values in cards here
{
for (int c = 0; c < 4; c++) {
cards3[r][c] = start[i];
i = i + 1;
}
}
//game(upDown, cards); // calls the game
int noDownCards = 16;
while (noDownCards > 0) {
//displayBoard(upDown, cards);
//String connected = sc.nextLine();
System.out.println(" 1 2 3 4 ");
System.out.println("---+---------");
for (int i1 = 0; i1 < 4; i1++) {
System.out.print(" " + (i1 + 1) + " | ");
for (int a = 0; a < 4; a++) {
if (upDown[i1][a]) {
System.out.print(cards[i1][a]);
System.out.print(" ");
}
else
System.out.print("* ");
}
System.out.println();
}
System.out.println();
String s = "Enter co-oridinate 1";
p.println(s);
//os.writeUTF(s);
//int g1x = is.readInt();
int g1x = sc.nextInt();
System.out.println(g1x);
p.println(s);
//os.writeUTF(s);
//int g1y = is.readInt();
int g1y = sc.nextInt();
System.out.println(g1x);
System.out.println(g1y);
System.out.println(cards[g1x][g1y]);
//os.writeUTF(s);
p.println(s);
int g2x = sc.nextInt();
p.println(s);
int g2y = sc.nextInt();
System.out.println(cards[g2x][g2y]);
if (cards[g1x][g1y] == cards[g2x][g2y]) {
System.out.println("You found a match");
upDown[g1x][g1y] = true;
upDown[g2x][g2y] = true;
noDownCards -= 2;
}
//os.writeInt(noDownCards);
p.println(noDownCards);
//is.readUTF();
sc.nextLine();
}
//displaying the grid
System.out.println(" 1 2 3 4 ");
System.out.println("---+---------");
for (int i1 = 0; i1 < 4; i1++) {
System.out.print(" " + (i1 + 1) + " | ");
for (int a = 0; a < 4; a++) {
if (upDown[i1][a]) {
System.out.print(cards[i1][a]);
System.out.print(" ");
}
else
System.out.print("* ");
}
System.out.println();
}
System.out.println();
System.out.println("You win");
}
catch(Exception e)
{
e.printStackTrace();
}
}
}
这是客户端文件
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.PrintStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Scanner;
public class Client
{
//Start the Game
public static void main(String[]args) {
try
{
Socket s = new Socket("127.0.0.1", 8080);
//scanner for accepting data from serve
Scanner sScan = new Scanner(s.getInputStream());
Scanner scan = new Scanner(System.in);
//new printstream for passing values to server
PrintStream p = new PrintStream(s.getOutputStream());
//DataInputStream is = new DataInputStream(s.getInputStream());
//DataOutputStream os = new DataOutputStream(s.getOutputStream());
//String str = is.readUTF();
String str = sScan.nextLine();
System.out.println(str);
String connect = "Players are connected";
p.println(connect);
// os.writeUTF(connect);
MemoryGame m = new MemoryGame();
Scanner s1 = new Scanner(System.in);
int noDownCards = 16;
while (noDownCards > 0) {
// String accept = is.readUTF();
String accept = sScan.nextLine();
System.out.println("Hello again");
System.out.println("Enter co-oridinate 1");
String g1 = scan.next();
if(g1.length()<2||g1.length()>2)
{
System.out.println("Invalid length");
}
//int g1x = Integer.valueOf(g1.charAt(0))-1;
int g1x = Integer.valueOf(g1.substring(0, 1))-1;
int g1y = Integer.valueOf(g1.substring(1, 2))-1;
System.out.println(g1x);
System.out.println(g1y);
System.out.println("Sending coordinate");
p.println(g1x);
//os.writeInt(g1x);
//String accept2 = is.readUTF();
String accept2 = sScan.nextLine();
p.println(g1y);
//os.writeInt(g1y);
//String accept3 = is.readUTF();
String accept3 = sScan.nextLine();
System.out.println("Enter co-oridinate 2");
String g2 = scan.next();
if(g2.length()<2||g2.length()>2)
{
System.out.println("Invalid length");
}
int g2x = Integer.valueOf(g2.substring(0, 1))-1;
int g2y = Integer.valueOf(g2.substring(1, 2))-1;
p.println(g2x);
//os.write(g2x);
//String accept4 = is.readUTF();
String accept4 = sScan.nextLine();
p.println(g2y);
//os.write(g2y);
//noDownCards = is.readInt();
noDownCards = sScan.nextInt();
//os.writeUTF(str);
p.println(str);
}
}
catch(Exception e)
{
e.printStackTrace();
}
}
}