java写的扫雷遇到数组越界异常报错

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代码<a rel=""nofollow"" href=""http://pan.baidu.com/s/1pJAtcy3"">http://pan.baidu.com/s/1pJAtcy3

package minewiper;

import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JOptionPane;
import ui.Panel;

public class gridClicked extends MouseAdapter{

private MineWiper mineWiper;
private int x;
private int y;
private Panel panel;

public gridClicked(int x,int y,MineWiper mineWiper,Panel panel) {
    this.mineWiper = mineWiper;
    this.x=x;
    this.y=y;
    this.panel = panel;
}

    @Override
public void mousePressed(MouseEvent e) {
        //如果左键按下
        if (e.getButton() == MouseEvent.BUTTON1) {
            mineWiper.dfs(this.x, this.y);
            boolean[][] visited = mineWiper.getIsVisited();
            visited[this.x][this.y] = true;

            mineWiper.setIsVisited(visited);
            if (mineWiper.getMap()[this.x][this.y] == 9) {
                this.gameOver();
            }
        }
        //如果右键按下
        if(e.getButton() == MouseEvent.BUTTON3) {
            if(!mineWiper.getIsVisited()[this.x][this.y]) {
                boolean[][] flag = mineWiper.getIsFlag();
                flag[this.x][this.y] = !flag[this.x][this.y];
                mineWiper.setIsFlag(flag);
            }
        }
     this.panel.repaint();
}

/*
* 游戏结束
*/
private void gameOver() {
boolean[][] visited = mineWiper.getIsVisited();
for(int x=0;x<mineWiper.getMapSizeX();x++)
for(y=0;y<mineWiper.getMapSizeY();y++)
{
if(mineWiper.getMap()[x][y]==9) {
visited[x][y] = true;
mineWiper.setIsVisited(visited);
}
}
this.panel.repaint();
if(JOptionPane.showConfirmDialog(panel,"游戏结束，还想继续吗", "Game Over", JOptionPane.YES_NO_OPTION)==JOptionPane.YES_OPTION)
{
mineWiper.initMap();
mineWiper.initMines();
}
else
System.exit(0);
}
}

package minewiper;

import java.util.Random;

public class MineWiper {

private int mapSizeX = 10;
private int mapSizeY = 10;

/*
* 表示对应方格是否翻转
/
private boolean[][] isVisited;
/
* map[x][y==0~8表示该方格不是雷，对应数字表示方格周围的雷数，9表示该方格是个雷
*/
private int[][] map;
//是否放置旗帜
private boolean[][] isFlag;
private int mineNumber;

public MineWiper() {
this.isVisited = new boolean[this.mapSizeX][this.mapSizeY];
this.map = new int[this.mapSizeX][this.mapSizeY];
this.isFlag = new boolean[this.mapSizeX][this.mapSizeY];
this.mineNumber = this.mapSizeX * this.mapSizeY / 10;
this.initMap();
this.initMines();
}
//深度优先搜索相邻数值为0的格子
public void dfs(int x,int y) {
if(isOverBound(x, y)) return;
if(isVisited[x][y] || map[x][y]!=0 || isFlag[x][y]) return;
isVisited[x][y] = true;
dfs(x-1, y-1); dfs(x-1, y); dfs(x-1, y+1);
dfs(x, y-1); dfs(x, y+1);
dfs(x+1, y+1); dfs(x+1, y); dfs(x+1, y-1);
}
//判断是否越界
private boolean isOverBound(int x,int y) {
if(x=this.mapSizeX || y>=this.mapSizeY) return true;
else return false;
}
//初始化数组
public void initMap() {
for(int x=0;x<this.mapSizeX;x++)
for(int y=0;y<this.mapSizeY;y++)
{
this.isVisited[x][y] = false;
this.map[x][y] = 0;
this.isFlag[x][y] = false;
}
}
//初始化地雷（随机生成地雷）
public void initMines() {
Random random = new Random();
int mx;
int my;
for (int i = 0; i < this.mineNumber; i++) {
mx = random.nextInt(mapSizeX-1);
my = random.nextInt(mapSizeY-1);
while(map[mx][my]!=0) {
mx = random.nextInt(mapSizeX);
my = random.nextInt(mapSizeY);
}
map[mx][my]=9;
}
for(int x=0;x<this.mapSizeX;x++)
for(int y=0;y<this.mapSizeY;y++)
{
if(map[x][y]==0) {
if(!isOverBound(x-1, y-1)) if(map[x-1][y-1]==9) map[x][y]++;
if(!isOverBound(x-1, y)) if(map[x-1][y]==9) map[x][y]++;
if(!isOverBound(x-1, y+1)) if(map[x-1][y+1]==9) map[x][y]++;
if(!isOverBound(x, y-1)) if(map[x][y-1]==9) map[x][y]++;
if(!isOverBound(x, y+1)) if(map[x][y+1]==9) map[x][y]++;
if(!isOverBound(x+1, y+1)) if(map[x+1][y+1]==9) map[x][y]++;
if(!isOverBound(x+1, y)) if(map[x+1][y]==9) map[x][y]++;
if(!isOverBound(x+1, y-1)) if(map[x+1][y-1]==9) map[x][y]++;
}
}
}

public int getMapSizeX() {
    return mapSizeX;
}

public void setMapSizeX(int mapSizeX) {
    this.mapSizeX = mapSizeX;
}

public int getMapSizeY() {
    return mapSizeY;
}

public void setMapSizeY(int mapSizeY) {
    this.mapSizeY = mapSizeY;
}

public boolean[][] getIsVisited() {
    return isVisited;
}

public void setIsVisited(boolean[][] isVisited) {
    this.isVisited = isVisited;
}

public int[][] getMap() {
    return map;
}

public void setMap(int[][] map) {
    this.map = map;
}

public boolean[][] getIsFlag() {
    return isFlag;
}

public void setIsFlag(boolean[][] isFlag) {
    this.isFlag = isFlag;
}

}

错误提示
Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 10
at minewiper.gridClicked.mousePressed(gridClicked.java:29)
at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:280)
at java.awt.Component.processMouseEvent(Component.java:6502)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3321)
at java.awt.Component.processEvent(Component.java:6270)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4861)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4489)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2719)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:729)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:688)
at java.awt.EventQueue$3.run(EventQueue.java:686)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:702)
at java.awt.EventQueue$4.run(EventQueue.java:700)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:699)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)