【井字游戏的例子】在此示例中, 我们将看到井字游戏的示例（也称为0和x（叉号））。
它只能通过AWT API开发, 但是我们在这里使用的是swing框架。
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
class TTT1 extends JFrame implements ItemListener, ActionListener{
int i, j, ii, jj, x, y, yesnull;
int a[][]={{10, 1, 2, 3, 11}, {10, 1, 4, 7, 11}, {10, 1, 5, 9, 11}, {10, 2, 5, 8, 11}, {10, 3, 5, 7, 11}, {10, 3, 6, 9, 11}, {10, 4, 5, 6, 11}, {10, 7, 8, 9, 11} };
int a1[][]={{10, 1, 2, 3, 11}, {10, 1, 4, 7, 11}, {10, 1, 5, 9, 11}, {10, 2, 5, 8, 11}, {10, 3, 5, 7, 11}, {10, 3, 6, 9, 11}, {10, 4, 5, 6, 11}, {10, 7, 8, 9, 11} };
boolean state, type, set;
Icon ic1, ic2, icon, ic11, ic22;
Checkbox c1, c2;
JLabel l1, l2;
JButton b[]=new JButton[9];
JButton reset;
public void showButton(){x=10;
y=10;
j=0;
for(i=0;
i<
=8;
i++, x+=100, j++){
b[i]=new JButton();
if(j==3)
{j=0;
y+=100;
x=10;
}
b[i].setBounds(x, y, 100, 100);
add(b[i]);
b[i].addActionListener(this);
}//eof forreset=new JButton("RESET");
reset.setBounds(100, 350, 100, 50);
add(reset);
reset.addActionListener(this);
}//eof showButton/*********************************************************/
publicvoid check(int num1){
for(ii=0;
ii<
=7;
ii++){
for(jj=1;
jj<
=3;
jj++){
if(a[ii][jj]==num1){ a[ii][4]=11;
}}//eof for jj}//eof for ii
}//eof check
/**********************************************************//*********************************************************/public void complogic(int num){ for(i=0;
i<
=7;
i++){
for(j=1;
j<
=3;
j++){
if(a[i][j]==num){a[i][0]=11;
a[i][4]=10;
}
}
}
for(i=0;
i<
=7;
i++){// for 1
set=true;
if(a[i][4]==10){//if 1
int count=0;
for(j=1;
j<
=3;
j++){//for 2
if(b[(a[i][j]-1)].getIcon()!=null){ //if 2
count++;
}//eof if 2
else{ yesnull=a[i][j];
}
}//eof for 2
if(count==2){//if 2
b[yesnull-1].setIcon(ic2);
this.check(yesnull);
set=false;
break;
}//eof if 2
}//eof if 1
else
if(a[i][0]==10){
for(j=1;
j<
=3;
j++){//for2
if(b[(a[i][j]-1)].getIcon()==null){ //if 1
b[(a[i][j]-1)].setIcon(ic2);
this.check(a[i][j]);
set=false;
break;
}//eof if1
}//eof for 2
if(set==false)
break;
}//eof elseifif(set==false)
break;
}//eof for 1}//eof complogic/*********************************************************/TTT1(){
super("tic tac toe by ashwani");
CheckboxGroup cbg=new CheckboxGroup();
c1=new Checkbox("vs computer", cbg, false);
c2=new Checkbox("vs friend", cbg, false);
c1.setBounds(120, 80, 100, 40);
c2.setBounds(120, 150, 100, 40);
add(c1);
add(c2);
c1.addItemListener(this);
c2.addItemListener(this);
state=true;
type=true;
set=true;
ic1=new ImageIcon("ic1.jpg");
ic2=new ImageIcon("ic2.jpg");
ic11=new ImageIcon("ic11.jpg");
ic22=new ImageIcon("ic22.jpg");
setLayout(null);
setSize(330, 450);
setVisible(true);
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
}//eof constructor/*************************************************************/
public void itemStateChanged(ItemEvent e){
if(c1.getState())
{
type=false;
} else if(c2.getState())
{ type=true;
}
remove(c1);
remove(c2);
repaint(0, 0, 330, 450);
showButton();
}//eof itemstate
/************************************************************/public void actionPerformed(ActionEvent e){
/********************************/
if(type==true)//logicfriend
{
if(e.getSource()==reset){
for(i=0;
i<
=8;
i++){
b[i].setIcon(null);
}//eof for
}
else{
for(i=0;
i<
=8;
i++){
if(e.getSource()==b[i]){if(b[i].getIcon()==null){
if(state==true){ icon=ic2;
state=false;
} else{ icon=ic1;
state=true;
}
b[i].setIcon(icon);
}
}
}//eof for
}//eof else
}//eof logicfriend
else if(type==false){//complogic
if(e.getSource()==reset){
for(i=0;
i<
=8;
i++){
b[i].setIcon(null);
}//eof for
for(i=0;
i<
=7;
i++)
for(j=0;
j<
=4;
j++)
a[i][j]=a1[i][j];
//again initialsing array
}
else{//complogic
for(i=0;
i<
=8;
i++){
if(e.getSource()==b[i]){
if(b[i].getIcon()==null){
b[i].setIcon(ic1);
if(b[4].getIcon()==null){
b[4].setIcon(ic2);
this.check(5);
} else{
this.complogic(i);
}
}
}
}//eof for
}
}//eof complogicfor(i=0;
i<
=7;
i++){Icon icon1=b[(a[i][1]-1)].getIcon();
Icon icon2=b[(a[i][2]-1)].getIcon();
Icon icon3=b[(a[i][3]-1)].getIcon();
if((icon1==icon2)&
&
(icon2==icon3)&
&
(icon1!=null)){
if(icon1==ic1){
b[(a[i][1]-1)].setIcon(ic11);
b[(a[i][2]-1)].setIcon(ic11);
b[(a[i][3]-1)].setIcon(ic11);
JOptionPane.showMessageDialog(TTT1.this, "!!!YOU won!!! click reset");
break;
}
else if(icon1==ic2){
b[(a[i][1]-1)].setIcon(ic22);
b[(a[i][2]-1)].setIcon(ic22);
b[(a[i][3]-1)].setIcon(ic22);
JOptionPane.showMessageDialog(TTT1.this, "won! click reset");
break;
}
}
}}//eof actionperformed
/************************************************************/public static void main(String []args){
new TTT1();
}//eof main
}//eof class推荐阅读
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