用JAVA编写一个小应用程序
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要交作业了，我速求一个Java应用小程序，像小游戏之类的
参考技术A 单人版五子棋，自己写的。------------------------------------------
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
class mypanel extends Panel implements MouseListener
int chess[][] = new int[11][11];
boolean Is_Black_True;
mypanel()
Is_Black_True = true;
for(int i = 0;i < 11;i++)
for(int j = 0;j < 11;j++)
chess[i][j] = 0;
addMouseListener(this);
setBackground(Color.BLUE);
setBounds(0, 0, 360, 360);
setVisible(true);
public void mousePressed(MouseEvent e)
int x = e.getX();
int y = e.getY();
if(x < 25 || x > 330 + 25 ||y < 25 || y > 330+25)
return;
if(chess[x/30-1][y/30-1] != 0)
return;
if(Is_Black_True == true)
chess[x/30-1][y/30-1] = 1;
Is_Black_True = false;
repaint();
Justisewiner();
return;
if(Is_Black_True == false)
chess[x/30-1][y/30-1] = 2;
Is_Black_True = true;
repaint();
Justisewiner();
return;
void Drawline(Graphics g)
for(int i = 30;i <= 330;i += 30)
for(int j = 30;j <= 330; j+= 30)
g.setColor(Color.WHITE);
g.drawLine(i, j, i, 330);
for(int j = 30;j <= 330;j += 30)
g.setColor(Color.WHITE);
g.drawLine(30, j, 330, j);
void Drawchess(Graphics g)
for(int i = 0;i < 11;i++)
for(int j = 0;j < 11;j++)
if(chess[i][j] == 1)
g.setColor(Color.BLACK);
g.fillOval((i + 1) * 30 - 8, (j + 1) * 30 - 8, 16, 16);
if(chess[i][j] == 2)
g.setColor(Color.WHITE);
g.fillOval((i + 1) * 30 - 8, (j + 1) * 30 - 8, 16, 16);
void Justisewiner()
int black_count = 0;
int white_count = 0;
int i = 0;
for(i = 0;i < 11;i++)//横向判断
for(int j = 0;j < 11;j++)
if(chess[i][j] == 1)
black_count++;
if(black_count == 5)
JOptionPane.showMessageDialog(this, "黑棋胜利");
Clear_Chess();
return;
else
black_count = 0;
if(chess[i][j] == 2)
white_count++;
if(white_count == 5)
JOptionPane.showMessageDialog(this, "白棋胜利");
Clear_Chess();
return;
else
white_count = 0;
for(i = 0;i < 11;i++)//竖向判断
for(int j = 0;j < 11;j++)
if(chess[j][i] == 1)
black_count++;
if(black_count == 5)
JOptionPane.showMessageDialog(this, "黑棋胜利");
Clear_Chess();
return;
else
black_count = 0;
if(chess[j][i] == 2)
white_count++;
if(white_count == 5)
JOptionPane.showMessageDialog(this, "白棋胜利");
Clear_Chess();
return;
else
white_count = 0;
for(i = 0;i < 7;i++)//左向右斜判断
for(int j = 0;j < 7;j++)
for(int k = 0;k < 5;k++)
if(chess[i + k][j + k] == 1)
black_count++;
if(black_count == 5)
JOptionPane.showMessageDialog(this, "黑棋胜利");
Clear_Chess();
return;
else
black_count = 0;
if(chess[i + k][j + k] == 2)
white_count++;
if(white_count == 5)
JOptionPane.showMessageDialog(this, "白棋胜利");
Clear_Chess();
return;
else
white_count = 0;
for(i = 4;i < 11;i++)//右向左斜判断
for(int j = 6;j >= 0;j--)
for(int k = 0;k < 5;k++)
if(chess[i - k][j + k] == 1)
black_count++;
if(black_count == 5)
JOptionPane.showMessageDialog(this, "黑棋胜利");
Clear_Chess();
return;
else
black_count = 0;
if(chess[i - k][j + k] == 2)
white_count++;
if(white_count == 5)
JOptionPane.showMessageDialog(this, "白棋胜利");
Clear_Chess();
return;
else
white_count = 0;
void Clear_Chess()
for(int i=0;i<11;i++)
for(int j=0;j<11;j++)
chess[i][j]=0;
repaint();
public void paint(Graphics g)
Drawline(g);
Drawchess(g);
public void mouseExited(MouseEvent e)
public void mouseEntered(MouseEvent e)
public void mouseReleased(MouseEvent e)
public void mouseClicked(MouseEvent e)
class myframe extends Frame implements WindowListener
mypanel panel;
myframe()
setLayout(null);
panel = new mypanel();
add(panel);
panel.setBounds(0,23, 360, 360);
setTitle("单人版五子棋");
setBounds(200, 200, 360, 383);
setVisible(true);
addWindowListener(this);
public void windowClosing(WindowEvent e)
System.exit(0);
public void windowDeactivated(WindowEvent e)
public void windowActivated(WindowEvent e)
public void windowOpened(WindowEvent e)
public void windowClosed(WindowEvent e)
public void windowIconified(WindowEvent e)
public void windowDeiconified(WindowEvent e)
public class mywindow
public static void main(String argc [])
myframe f = new myframe();
本回答被提问者采纳 参考技术B 单人版五子棋，自己写的。
------------------------------------------
import
java.awt.*;
import
java.awt.event.*;
import
javax.swing.*;
class
mypanel
extends
Panel
implements
MouseListener
int
chess[][]
=
new
int[11][11];
boolean
Is_Black_True;
mypanel()
Is_Black_True
=
true;
for(int
i
=
0;i
<
11;i++)
for(int
j
=
0;j
<
11;j++)
chess[i][j]
=
0;
addMouseListener(this);
setBackground(Color.BLUE);
setBounds(0,
0,
360,
360);
setVisible(true);
public
void
mousePressed(MouseEvent
e)
int
x
=
e.getX();
int
y
=
e.getY();
if(x
<
25
||
x
>
330
+
25
||y
<
25
||
y
>
330+25)
return;
if(chess[x/30-1][y/30-1]
!=
0)
return;
if(Is_Black_True
==
true)
chess[x/30-1][y/30-1]
=
1;
Is_Black_True
=
false;
repaint();
Justisewiner();
return;
if(Is_Black_True
==
false)
chess[x/30-1][y/30-1]
=
2;
Is_Black_True
=
true;
repaint();
Justisewiner();
return;
void
Drawline(Graphics
g)
for(int
i
=
30;i
<=
330;i
+=
30)
for(int
j
=
30;j
<=
330;
j+=
30)
g.setColor(Color.WHITE);
g.drawLine(i,
j,
i,
330);
for(int
j
=
30;j
<=
330;j
+=
30)
g.setColor(Color.WHITE);
g.drawLine(30,
j,
330,
j);
void
Drawchess(Graphics
g)
for(int
i
=
0;i
<
11;i++)
for(int
j
=
0;j
<
11;j++)
if(chess[i][j]
==
1)
g.setColor(Color.BLACK);
g.fillOval((i
+
1)
*
30
-
8,
(j
+
1)
*
30
-
8,
16,
16);
if(chess[i][j]
==
2)
g.setColor(Color.WHITE);
g.fillOval((i
+
1)
*
30
-
8,
(j
+
1)
*
30
-
8,
16,
16);
void
Justisewiner()
int
black_count
=
0;
int
white_count
=
0;
int
i
=
0;
for(i
=
0;i
<
11;i++)//横向判断
for(int
j
=
0;j
<
11;j++)
if(chess[i][j]
==
1)
black_count++;
if(black_count
==
5)
JOptionPane.showMessageDialog(this,
"黑棋胜利");
Clear_Chess();
return;
else
black_count
=
0;
if(chess[i][j]
==
2)
white_count++;
if(white_count
==
5)
JOptionPane.showMessageDialog(this,
"白棋胜利");
Clear_Chess();
return;
else
white_count
=
0;
for(i
=
0;i
<
11;i++)//竖向判断
for(int
j
=
0;j
<
11;j++)
if(chess[j][i]
==
1)
black_count++;
if(black_count
==
5)
JOptionPane.showMessageDialog(this,
"黑棋胜利");
Clear_Chess();
return;
else
black_count
=
0;
if(chess[j][i]
==
2)
white_count++;
if(white_count
==
5)
JOptionPane.showMessageDialog(this,
"白棋胜利");
Clear_Chess();
return;
else
white_count
=
0;
for(i
=
0;i
<
7;i++)//左向右斜判断
for(int
j
=
0;j
<
7;j++)
for(int
k
=
0;k
<
5;k++)
if(chess[i
+
k][j
+
k]
==
1)
black_count++;
if(black_count
==
5)
JOptionPane.showMessageDialog(this,
"黑棋胜利");
Clear_Chess();
return;
else
black_count
=
0;
if(chess[i
+
k][j
+
k]
==
2)
white_count++;
if(white_count
==
5)
JOptionPane.showMessageDialog(this,
"白棋胜利");
Clear_Chess();
return;
else
white_count
=
0;
for(i
=
4;i
<
11;i++)//右向左斜判断
for(int
j
=
6;j
>=
0;j--)
for(int
k
=
0;k
<
5;k++)
if(chess[i
-
k][j
+
k]
==
1)
black_count++;
if(black_count
==
5)
JOptionPane.showMessageDialog(this,
"黑棋胜利");
Clear_Chess();
return;
else
black_count
=
0;
if(chess[i
-
k][j
+
k]
==
2)
white_count++;
if(white_count
==
5)
JOptionPane.showMessageDialog(this,
"白棋胜利");
Clear_Chess();
return;
else
white_count
=
0;
void
Clear_Chess()
for(int
i=0;i<11;i++)
for(int
j=0;j<11;j++)
chess[i][j]=0;
repaint();
public
void
paint(Graphics
g)
Drawline(g);
Drawchess(g);
public
void
mouseExited(MouseEvent
e)
public
void
mouseEntered(MouseEvent
e)
public
void
mouseReleased(MouseEvent
e)
public
void
mouseClicked(MouseEvent
e)
class
myframe
extends
Frame
implements
WindowListener
mypanel
panel;
myframe()
setLayout(null);
panel
=
new
mypanel();
add(panel);
panel.setBounds(0,23,
360,
360);
setTitle("单人版五子棋");
setBounds(200,
200,
360,
383);
setVisible(true);
addWindowListener(this);
public
void
windowClosing(WindowEvent
e)
System.exit(0);
public
void
windowDeactivated(WindowEvent
e)
public
void
windowActivated(WindowEvent
e)
public
void
windowOpened(WindowEvent
e)
public
void
windowClosed(WindowEvent
e)
public
void
windowIconified(WindowEvent
e)
public
void
windowDeiconified(WindowEvent
e)
public
class
mywindow
public
static
void
main(String
argc
[])
myframe
f
=
new
myframe();
参考技术C 你到网上搜去吧，下来呢你改下图形界面就好了，嘿嘿。
java：编写一个计算器小程序，要求可以做加减乘除运算
import javax.swing.*;import java.awt.*;
import java.awt.event.*;
public class Calculator extends JFrame implements ActionListener
private static final long serialVersionUID = 8199443193151152362L;
private JButton bto_s=new JButton("sqrt"),bto_zf=new JButton("+/-"),bto_ce=new JButton("CE"),bto_c=new JButton("C"),bto_7=new JButton("7"),
bto_8=new JButton("8"),bto_9=new JButton("9"),bto_chu=new JButton("/"),bto_4=new JButton("4"),bto_5=new JButton("5"),
bto_6=new JButton("6"),bto_cheng=new JButton("*"),bto_1=new JButton("1"),bto_2=new JButton("2"),bto_3=new JButton("3"),
bto_jian=new JButton("-"),bto_0=new JButton("0"),bto_dian=new JButton("."),bto_deng=new JButton("="),bto_jia=new JButton("+");
JButton button[]=bto_s,bto_zf,bto_ce,bto_c,bto_7,bto_8,bto_9,bto_chu,bto_4,bto_5,bto_6,bto_cheng,bto_1,bto_2,bto_3,bto_jian,
bto_0,bto_dian,bto_deng,bto_jia;
private JTextField text_double;// = new JTextField("0");
private String operator = "="; //当前运算的运算符
private boolean firstDigit = true; // 标志用户按的是否是整个表达式的第一个数字,或者是运算符后的第一个数字
private double resultNum = 0.0; // 计算的中间结果
private boolean operateValidFlag = true; //判断操作是否合法
public Calculator()
super("Calculator");
this.setBounds(300, 300, 300, 300);
this.setResizable(false);
this.setBackground(Color.orange);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
this.getContentPane().setLayout(new BorderLayout());//设置布局
text_double=new JTextField("0",20);//设置文本区
text_double.setHorizontalAlignment(JTextField.RIGHT);//设置水平对齐方式未右对齐
this.getContentPane().add(text_double,BorderLayout.NORTH);//将文本区添加到Content北部
JPanel panel=new JPanel(new GridLayout(5,4));//在内容窗口添加一个网格布局
this.getContentPane().add(panel);//添加panel面板
for(int i=0;i<button.length;i++)//在面板上添加按钮
panel.add(button[i]);
for(int i=0;i<button.length;i++)
button[i].addActionListener(this);//为按钮注册
text_double.setEditable(false);//文本框不可编辑
text_double.addActionListener(this);//
this.setVisible(true);
public void actionPerformed(ActionEvent e)//
String c= e.getActionCommand();//返回与此动作相关的命令字符串。
System.out.println("##########command is "+c);
if(c.equals("C"))
handleC(); //用户按了“C”键
else if (c.equals("CE")) // 用户按了"CE"键
text_double.setText("0");
else if ("0123456789.".indexOf(c) >= 0) // 用户按了数字键或者小数点键
handleNumber(c); // handlezero(zero);
else //用户按了运算符键
handleOperator(c);
private void handleC() // 初始化计算器的各种值
text_double.setText("0");
firstDigit = true;
operator = "=";
private void handleNumber(String button)
if (firstDigit)//输入的第一个数字
text_double.setText(button);
else if ((button.equals(".")) && (text_double.getText().indexOf(".") < 0))//输入的是小数点，并且之前没有小数点，则将小数点附在结果文本框的后面
//如果字符串参数作为一个子字符串在此对象中出现，则返回第一个这种子字符串的第一个字符的索引；如果它不作为一个子字符串出现，则返回 -1
text_double.setText(text_double.getText() + ".");
else if (!button.equals("."))// 如果输入的不是小数点，则将数字附在结果文本框的后面
text_double.setText(text_double.getText() + button);
// 以后输入的肯定不是第一个数字了
firstDigit = false;
private void handleOperator(String button)
if (operator.equals("/"))
// 除法运算
// 如果当前结果文本框中的值等于0
if (getNumberFromText() == 0.0)
// 操作不合法
operateValidFlag = false;
text_double.setText("除数不能为零");
else
resultNum /= getNumberFromText();
else if (operator.equals("+"))
// 加法运算
resultNum += getNumberFromText();
else if (operator.equals("-"))
// 减法运算
resultNum -= getNumberFromText();
else if (operator.equals("*"))
// 乘法运算
resultNum *= getNumberFromText();
else if (operator.equals("sqrt"))
// 平方根运算
if(getNumberFromText()<0)
operateValidFlag = false;
text_double.setText("被开方数不能为负数");
else
resultNum = Math.sqrt(resultNum);
else if (operator.equals("+/-"))
// 正数负数运算
resultNum = resultNum * (-1);
else if (operator.equals("="))
// 赋值运算
resultNum = getNumberFromText();
if (operateValidFlag)
// 双精度浮点数的运算
long t1;
double t2;
t1 = (long) resultNum;
t2 = resultNum - t1;
if (t2 == 0)
text_double.setText(String.valueOf(t1));
else
text_double.setText(String.valueOf(resultNum));
operator = button; //运算符等于用户按的按钮
firstDigit = true;
operateValidFlag = true;
private double getNumberFromText() //从结果的文本框获取数字
double result = 0;
try
result = Double.valueOf(text_double.getText()).doubleValue(); // ValueOf()返回表示指定的 double 值的 Double 实例
catch (NumberFormatException e)
return result;
public static void main(final String[] args)
new Calculator();
参考技术A kankan我的
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.math.BigDecimal;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class TestCalc implements ActionListener
JFrame jf = new JFrame("计算器");
JPanel jp = new JPanel();
JTextField jtf = new JTextField("0.", 200);
JButton[] jb = new JButton[20];
private int tag = 0;
private double a;
private double b;
private String operator;
StringBuilder sb1 = new StringBuilder();
StringBuilder sb2 = new StringBuilder();
public TestCalc()
jf.add(jtf, BorderLayout.NORTH);
// jtf.requestFocus();
jtf.setEditable(false);
jtf.setCaretPosition(jtf.getText().length() - 1);
jf.add(jp);
jp.setLayout(new GridLayout(5, 4, 4, 4));
String[] str = "Back", "CE", "C", "+", "7", "8", "9", "-", "4", "5",
"6", "*", "1", "2", "3", "/", "0", "+/-", ".", "=" ;
int i = 0;
for (i = 0; i < str.length; i++)
jb[i] = new JButton(str[i]);
jp.add(jb[i]);
jb[i].addActionListener(this);
jf.setSize(300, 240);
// jf.setLocation(300,200);
jf.setLocationRelativeTo(null);
jf.setVisible(true);
// jf.pack();//自动调整大小；
jf.setResizable(false);// 不允许别人调大小；
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
public static void main(String[] args)
TestCalc tc = new TestCalc();
public void actionPerformed(ActionEvent e)
String command = e.getActionCommand();
if (command.matches("^[[0-9].]$"))
if (tag == 0)
sb1.append(command);
jtf.setText(sb1.substring(0));
else
sb2.append(command);
jtf.setText(sb2.substring(0));
else if (command.matches("^[-/*+]$"))
tag = 1;
operator = command;
else
if (command.matches("="))
String str1 = sb1.substring(0);
String str2 = sb2.substring(0);
if (str1 == null)
a = 0.0;
else
a = Double.parseDouble(str1);
if (str2 == null)
b = 0.0;
else
b = Double.parseDouble(str2);
if (operator.equals("+"))
jtf.setText("" + (a + b));
else if (operator.equals("-"))
BigDecimal bd1 = new BigDecimal(Double.toString(a)); // 必须使用String做参数才可以精确运算
BigDecimal bd2 = new BigDecimal(Double.toString(b));
Double yu1 = bd1.subtract(bd2).doubleValue();
jtf.setText("" + (yu1));
else if (operator.equals("*"))
jtf.setText("" + (a * b));
else if (operator.equals("/"))
BigDecimal bd1 = new BigDecimal(Double.toString(a)); // 必须使用String做参数才可以精确运算
BigDecimal bd2 = new BigDecimal(Double.toString(b));
Double yu1 = bd1.divide(bd2).doubleValue();
jtf.setText("" + yu1);
tag = 0;
sb1.delete(0, sb1.length());
sb2.delete(0, sb2.length());
else if (command.matches("C"))
tag = 0;
sb1.delete(0, sb1.length());
sb2.delete(0, sb2.length());
jtf.setText("0.");
jtf.setCaretPosition(jtf.getText().length() - 1);
else if (command.matches("CE"))
tag = 0;
sb2.delete(0, sb2.length());
jtf.setText(sb1.substring(0));
else if (command.matches("Back")) //Back功能键的实现；
if (tag == 0)
sb1.deleteCharAt(sb1.length() - 1);
jtf.setText(sb1.substring(0));
else
sb2.deleteCharAt(sb2.length() - 1);
jtf.setText(sb2.substring(0));
else if (command.matches("\\+/-"))
if (tag == 0)
if(sb1.substring(0,1).equals("-"))
sb1.replace(0,1,"+");
else
sb1.insert(0, "-");
jtf.setText(sb1.substring(0));
else
if(sb2.substring(0,1).equals("-"))
sb2.replace(0,1,"+");
else
sb2.insert(0, "-");
jtf.setText(sb2.substring(0));
else
参考技术B 这是我做的小计算器，你看下，可以实现加减乘除。觉得好就采纳，谢谢啦。
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class calculate
public static void main(String[] args)
jxframe kj=new jxframe();
kj.setVisible(true);
kj.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
class jxframe extends JFrame
JTextField w;
private boolean pd;
private String bj;
private double result;
public jxframe()
setTitle("计算器");
pd=true;
bj="=";
result=0;
w=new JTextField(20);
add(w,"North");
add(new m(),"Center");
pack();
class m extends JComponent
public m()
setLayout(new GridLayout(4,4));
addbutton("7",new sz());
addbutton("8",new sz());
addbutton("9",new sz());
addbutton("/",new jx());
addbutton("4",new sz());
addbutton("5",new sz());
addbutton("6",new sz());
addbutton("*",new jx());
addbutton("1",new sz());
addbutton("2",new sz());
addbutton("3",new sz());
addbutton("+",new jx());
addbutton("0",new sz());
addbutton(".",new sz());
addbutton("=",new jx());
addbutton("-",new jx());
public void addbutton(String name,ActionListener e)
JButton an=new JButton(name);
an.addActionListener(e);
add(an);
class sz implements ActionListener
public void actionPerformed(ActionEvent e)
String sb=e.getActionCommand();
if(pd)
w.setText("");
pd=false;
w.setText(w.getText()+sb);
class jx implements ActionListener
public void actionPerformed(ActionEvent e)
String jb=e.getActionCommand();
if(pd)
jb.equals("-");
w.setText(jb);
pd=false;
else
js(Double.parseDouble(w.getText()));
bj=jb;
pd=true;
public void js(double jsb)
if(bj.equals("/")) result/=jsb;
if(bj.equals("*")) result*=jsb;
if(bj.equals("+")) result+=jsb;
if(bj.equals("-")) result-=jsb;
if(bj.equals("=")) result=jsb;
w.setText(""+result);
参考技术C 代码如下：
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class Accumulator extends JFrame implements ActionListener,ItemListener
public double result=0;
static String is="+";
JTextField jt1 = new JTextField(10);
JTextField jt2 = new JTextField(10);
JTextField jt3 = new JTextField(10);
JComboBox jcb = new JComboBox();
JButton jb = new JButton("=");
public Accumulator()
JPanel jp = new JPanel();
jp.setLayout(new FlowLayout());
jcb.addItemListener(this);
jcb.addItem("+");
jcb.addItem("-");
jcb.addItem("*");
jcb.addItem("/");
jb.addActionListener(this);
jp.add(jt1);
jp.add(jcb);
jp.add(jt2);
jp.add(jb);
jp.add(jt3);
this.setTitle("简易计算器");
this.add(jp);
this.setBounds(400, 350, 500, 300);
this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
this.setVisible(true);
@Override
public void actionPerformed(ActionEvent ae)
if(ae.getSource()==jb)
if(is.equals("+"))
result =Double.parseDouble(jt1.getText())+Double.parseDouble(jt2.getText());
jt3.setText(String.valueOf(result));
if(is.equals("-"))
result =Double.parseDouble(jt1.getText())-Double.parseDouble(jt2.getText());
jt3.setText(String.valueOf(result));
if(is.equals("*"))
result =Double.parseDouble(jt1.getText())*Double.parseDouble(jt2.getText());
jt3.setText(String.valueOf(result));
if(is.equals("/"))
result =Double.parseDouble(jt1.getText())/Double.parseDouble(jt2.getText());
jt3.setText(String.valueOf(result));
public static void main(String [] args)
Accumulator ac = new Accumulator();
@Override
public void itemStateChanged(ItemEvent ie)
is =(String)ie.getItem();
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