谁能给个JAVA的小程序代码，越小越好！

这是我晓得的最简单的java小程序代码了你可以看看:

package com.kenki.emp

import javax.servlet.*

import javax.servlet.http.*

import java.io.*

import java.util.*

import java.sql.SQLException

import java.sql.*

public class emp extends HttpServlet {

private static final String CONTENT_TYPE = "text/htmlcharset=GBK"

//Initialize global variables

public void init() throws ServletException {

}

//Process the HTTP Get request

public void doGet(HttpServletRequest request, HttpServletResponse response) throws

ServletException, IOException {

response.setContentType(CONTENT_TYPE)

PrintWriter out = response.getWriter()

String code = request.getParameter("code")

String name = request.getParameter("name")

String pay = request.getParameter("pay")

System.out.println("empcode:" + code)

System.out.println("name:" + name)

System.out.println("pay:" + pay)

//创建驱动

new com.microsoft.jdbc.sqlserver.SQLServerDriver()

String strd =

"jdbc:microsoft:sqlserver://localhost:1433databasename=emp_dates"

String username = "sa"

String pws = ""

try {

java.sql.Connection conn = java.sql.DriverManager.getConnection(

strd, username, pws)

String strs = "insert into emp values(?,?,?)"

java.sql.PreparedStatement pre = conn.prepareStatement(strs)

pre.setString(1, code)

pre.setString(2, name)

pre.setString(3, pay)

pre.execute()

pre.close()

conn.close()

//重定向至查询页面

out.println("成功保存！！")

response.sendRedirect("emp.html")

} catch (SQLException ss) {

ss.printStackTrace()

response.sendRedirect("/WebModule1/error.html")

}

}

//Process the HTTP Post request

public void doPost(HttpServletRequest request, HttpServletResponse response) throws

ServletException, IOException {

doGet(request, response)

}

//Clean up resources

public void destroy() {

}

}

using System

using System.Collections.Generic

using System.ComponentModel

using System.Data

using System.Drawing

using System.Text

using System.Windows.Forms

using System.Collections

namespace RIF

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent()

}

public class Arr

{

public int[,] arr = new int[25, 25]

public bool win

}

Arr a = new Arr()

bool cc = true

public void PaintLab()

{

Bitmap image = new Bitmap(300,300)

Graphics g = Graphics.FromImage(image)

g.Clear(Color.Tan)

Pen pen = new Pen(Color.Black, 1)

int i, j

i = j = 0

while (i <= 300)

{

g.DrawLine(pen, i, 0, i, 300)

i = i + 20

}

while (j <= 300)

{

g.DrawLine(pen, 0, j, 300, j)

j = j + 20

}

img.Image = image

}

private void Form1_Load(object sender, EventArgs e)

{

PaintLab()

}

private void img_MouseClick(object sender, MouseEventArgs e)

{

if (e.Button == MouseButtons.Left)

{

int x = e.X

int y = e.Y

Graphics g = Graphics.FromImage(img.Image)

Brush pen

int myx = x / 20

int myy = y / 20

if (a.arr[myx, myy] != 0)

{

MessageBox.Show("这里已经有棋子了!")

return

}

else

{

if (cc)

{

pen = new SolidBrush(Color.White)

cc = false

a.arr[myx, myy] = 1

}

else

{

pen = new SolidBrush(Color.Black)

cc = true

a.arr[myx, myy] = 2

}

g.FillEllipse(pen, myx * 20 + 2, myy * 20 + 2, 16, 16)

img.Invalidate()

int z = IsWin(myx, myy, cc)

if (z != 0)

{

if (z == 1)

{

MessageBox.Show("白色获胜!")

}

else

{

MessageBox.Show("黑色获胜!")

}

img.Enabled = false

}

}

}

else

{

MessageBox.Show("本程序由Cantahu开发","作者信息",MessageBoxButtons.OK,MessageBoxIcon.Information)

}

}

private int IsWin(int x, int y,bool cc)

{

int m, n, count, p, q

int val = 0

bool win=false

if (cc)

{

val = 2

}

else

{

val = 1

}

#region 横向判断

count = 1

int f = 0

m = x-1

n = x+1

while (1==1)

{

if (count == 5)

{

win = true

break

}

else if (f == 5)

{

win = false

break

}

if (m >= 0 &&n <= 300)

{

if (a.arr[m, y] == val)

{

count = count + 1

m = m - 1

}

if (a.arr[n, y] == val)

{

count = count + 1

n = n + 1

}

}

f = f + 1

}

if (win)

{

return val

}

#endregion

#region 纵向判断

m = y - 1

n = y + 1

f = 0

count = 1

while (1 == 1)

{

if (count == 5)

{

win = true

break

}

if (f == 5)

{

win = false

break

}

if (m >= 0 &&n <= 300)

{

if(a.arr[x,m]==val)

{

count = count + 1

m = m - 1

}

if(a.arr[x,n]==val)

{

count = count + 1

n = n + 1

}

}

f = f + 1

}

if (win)

{

return val

}

#endregion

#region 左斜向判断

count = 1

f = 0

m = x - 1

n = y - 1

p = x + 1

q = y + 1

while (1 == 1)

{

if (count == 5)

{

win = true

break

}

if (f == 5)

{

win = false

break

}

if (m >= 0 &&n >= 0 &&p <= 300 &&q <= 300)

{

if (a.arr[m, n] == val)

{

count = count + 1

m = m - 1

n = n - 1

}

if (a.arr[p, q] == val)

{

count = count + 1

p = p + 1

q = q + 1

}

}

f = f + 1

}

if (win)

{

return val

}

#endregion

#region 右斜向

count = 1

f = 0

m = x - 1

n = y + 1

p = x + 1

q = y - 1

while (1 == 1)

{

if (count == 5)

{

win = true

break

}

if (f == 5)

{

win = false

break

}

if (m >= 0 &&n <= 300 &&p <= 300 &&q >= 0)

{

if (a.arr[m, n] == val)

{

count = count + 1

m = m - 1

n = n + 1

}

if (a.arr[p, q] == val)

{

count = count + 1

p = p + 1

q = q - 1

}

}

f = f + 1

}

if (win)

{

return val

}

#endregion

return 0

}

private void Btnstart_Click(object sender, EventArgs e)

{

img.Enabled = true

PaintLab()

}

private void btnClose_Click(object sender, EventArgs e)

{

this.Close()

}

}

}

这是我自己写的 五子棋代码 希望对你有帮助

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