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JAVA记事本

本文发布时间：2008-10-21 12:09　点击数：403

package notepad;
import java.awt.*;
import java.awt.event.*;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JMenuBar;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.JTextArea;
import java.awt.BorderLayout;
import javax.swing.*;
import java.io.*;

public class NotepadFrame1 extends JFrame {
  File file;
  JPanel contentPane;
  BorderLayout borderLayout1 = new BorderLayout();
  JMenuBar jMenuBar1 = new JMenuBar();
  JMenu mnuFile = new JMenu();
  JMenuItem mnuNew = new JMenuItem();
  JMenu mnuEditor = new JMenu();
  JMenuItem mnuSave = new JMenuItem();
  JMenuItem mnuExit = new JMenuItem();
  JMenuItem jMenuItem1 = new JMenuItem();
  JMenuItem mnuOpen = new JMenuItem();
  JMenuItem mnuColor = new JMenuItem();
  JMenu jMenu1 = new JMenu();
  JMenuItem mnuAbout = new JMenuItem();
  JTextArea txaDisplay = new JTextArea();
  JScrollPane jScrollPane1 = new JScrollPane();
  JMenu jMenu2 = new JMenu();
  JRadioButtonMenuItem jRadioButtonMenuItem2 = new JRadioButtonMenuItem();
  ButtonGroup buttonGroup1 = new ButtonGroup();
  public NotepadFrame1() {
    try {
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        jbInit();
    } catch (Exception exception) {
        exception.printStackTrace();
    }
  }
  /**
  * Component initialization.
  *
  * @throws java.lang.Exception
  */
  private void jbInit() throws Exception {
    contentPane = (JPanel) getContentPane();
    contentPane.setLayout(borderLayout1);
    setSize(new Dimension(400, 300));
    setTitle("记事本");
    mnuFile.setText("文件");
    mnuNew.setText("新建");
    mnuNew.addActionListener(new NotepadFrame1_mnuNew_actionAdapter(this));
    mnuExit.addActionListener(new
                      NotepadFrame1_jMenuFileExit_ActionAdapter(this));
    mnuEditor.setText("编辑");
    // mnuFont.addActionListener(new NotepadFrame1_mnuFont_actionAdapter(this));
    mnuAbout.addActionListener(new
                      NotepadFrame1_jMenuHelpAbout_ActionAdapter(this));
    mnuSave.setText("保存");
    mnuSave.addActionListener(new NotepadFrame1_mnuSave_actionAdapter(this));
    mnuExit.setText("退出");
    mnuOpen.setText("打开");
    mnuOpen.addActionListener(new NotepadFrame1_mnuOpen_actionAdapter(this));
    mnuColor.setText("颜色");
    mnuColor.addActionListener(new NotepadFrame1_mnuColor_actionAdapter(this));
    jMenu1.setText("帮助");
    mnuAbout.setText("关于");
    txaDisplay.setLineWrap(true);
    jMenu2.setActionCommand("字体");
    jMenu2.setText("字体");
    jRadioButtonMenuItem2.setText("加粗");
    jRadioButtonMenuItem2.addActionListener(new
          NotepadFrame1_jRadioButtonMenuItem2_actionAdapter(this));
    jMenuBar1.add(mnuFile);
    mnuFile.add(mnuNew);
    mnuFile.add(mnuOpen);
    mnuFile.add(mnuSave);
    mnuFile.add(mnuExit);
    jMenuBar1.add(mnuEditor);
    jMenuBar1.add(jMenu1);
    mnuEditor.add(jMenu2);
    mnuEditor.add(mnuColor);
    jMenu1.add(mnuAbout);
    contentPane.add(jScrollPane1, java.awt.BorderLayout.CENTER);
    jScrollPane1.getViewport().add(txaDisplay);
    jMenu2.add(jRadioButtonMenuItem2);
    setJMenuBar(jMenuBar1);
    buttonGroup1.add(jRadioButtonMenuItem2);
  }
  /**
  * File | Exit action performed.
  *
  * @param actionEvent ActionEvent
  */
  void jMenuFileExit_actionPerformed(ActionEvent actionEvent) {
    System.exit(0);
  }
  /**
  * Help | About action performed.
  *
  * @param actionEvent ActionEvent
  */
  void jMenuHelpAbout_actionPerformed(ActionEvent actionEvent) {
    NotepadFrame1_AboutBox dlg = new NotepadFrame1_AboutBox(this);
    //居中显示
    Dimension dlgSize = dlg.getPreferredSize();
    Dimension frmSize = getSize();
    Point loc = getLocation();
    dlg.setLocation((frmSize.width - dlgSize.width) / 2 + loc.x,
                (frmSize.height - dlgSize.height) / 2 + loc.y);
    dlg.setModal(true);
    dlg.pack();
    dlg.setVisible(true);
  }
  public void mnuNew_actionPerformed(ActionEvent e) {
    //新建
    txaDisplay.setText("");
  }
  public void mnuOpen_actionPerformed(ActionEvent e) {
    txaDisplay.setText("");
    //打开对话框
    JFileChooser fselect = new JFileChooser();
    fselect.showOpenDialog(this);
    //读取
    file = fselect.getSelectedFile();
    try {
        FileReader fr = new FileReader(file);
        BufferedReader br = new BufferedReader(fr);
        String line = br.readLine();
        String str = ""; //保存文件中的字符串
        while (line != null) {
          txaDisplay.append(line + "\n");
          line = br.readLine();
        }
        br.close();
        fr.close();
    } catch (Exception ex) {
        System.out.println(ex);
    }
  }
  public void mnuSave_actionPerformed(ActionEvent e) {
    //保存
    if (file == null) {
        //打开对话框
        JFileChooser fselect = new JFileChooser();
        fselect.showSaveDialog(this);
        //读取
        file = fselect.getSelectedFile();
    }
    try {
        FileWriter fw = new FileWriter(file);
        BufferedWriter bw = new BufferedWriter(fw);
        bw.write(txaDisplay.getText());
        bw.flush();
        fw.close();
    } catch (IOException ex) {
        System.out.println(ex);
    }
  }
  public void mnuFont_actionPerformed(ActionEvent e) {
    Font f Font("黑体",Font.PLAIN,50);
    txaDisplay.setFont(font);
  }
  public void mnuColor_actionPerformed(ActionEvent e) {
    //颜色对话框
    Color objColor = javax.swing.JColorChooser.showDialog(this,
          "背景颜色", txaDisplay.getForeground());
    if (objColor != null) {
        txaDisplay.setForeground(objColor);
    }
  }
  public void jRadioButtonMenuItem1_actionPerformed(ActionEvent e) {
    Font f Font(txaDisplay.getFont().getName(),Font.PLAIN,txaDisplay.getFont().getSize());
    txaDisplay.setFont(font);
  }
  public void jRadioButtonMenuItem2_actionPerformed(ActionEvent e) {
    Font f Font(txaDisplay.getFont().getName(),Font.BOLD,txaDisplay.getFont().getSize());
    txaDisplay.setFont(font);
  }
  public void jRadioButtonMenuItem3_actionPerformed(ActionEvent e) {
    Font f Font(txaDisplay.getFont().getName(),Font.ITALIC,txaDisplay.getFont().getSize());
    txaDisplay.setFont(font);
  }
}

class NotepadFrame1_jRadioButtonMenuItem2_actionAdapter implements
    ActionListener {
  private NotepadFrame1 adaptee;
  NotepadFrame1_jRadioButtonMenuItem2_actionAdapter(NotepadFrame1 adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jRadioButtonMenuItem2_actionPerformed(e);
  }
}

class NotepadFrame1_jRadioButtonMenuItem1_actionAdapter implements
    ActionListener {
  private NotepadFrame1 adaptee;
  NotepadFrame1_jRadioButtonMenuItem1_actionAdapter(NotepadFrame1 adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jRadioButtonMenuItem1_actionPerformed(e);
  }
}

class NotepadFrame1_mnuColor_actionAdapter implements ActionListener {
  private NotepadFrame1 adaptee;
  NotepadFrame1_mnuColor_actionAdapter(NotepadFrame1 adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.mnuColor_actionPerformed(e);
  }
}

class NotepadFrame1_jRadioButtonMenuItem3_actionAdapter implements
    ActionListener {
  private NotepadFrame1 adaptee;
  NotepadFrame1_jRadioButtonMenuItem3_actionAdapter(NotepadFrame1 adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.jRadioButtonMenuItem3_actionPerformed(e);
  }
}

class NotepadFrame1_mnuSave_actionAdapter implements ActionListener {
  private NotepadFrame1 adaptee;
  NotepadFrame1_mnuSave_actionAdapter(NotepadFrame1 adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.mnuSave_actionPerformed(e);
  }
}

class NotepadFrame1_mnuOpen_actionAdapter implements ActionListener {
  private NotepadFrame1 adaptee;
  NotepadFrame1_mnuOpen_actionAdapter(NotepadFrame1 adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.mnuOpen_actionPerformed(e);
  }
}

class NotepadFrame1_mnuNew_actionAdapter implements ActionListener {
  private NotepadFrame1 adaptee;
  NotepadFrame1_mnuNew_actionAdapter(NotepadFrame1 adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.mnuNew_actionPerformed(e);
  }
}

class NotepadFrame1_jMenuFileExit_ActionAdapter implements ActionListener {
  NotepadFrame1 adaptee;
  NotepadFrame1_jMenuFileExit_ActionAdapter(NotepadFrame1 adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent actionEvent) {
    adaptee.jMenuFileExit_actionPerformed(actionEvent);
  }
}

class NotepadFrame1_mnuFont_actionAdapter implements ActionListener {
  private NotepadFrame1 adaptee;
  NotepadFrame1_mnuFont_actionAdapter(NotepadFrame1 adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.mnuFont_actionPerformed(e);
  }
}

class NotepadFrame1_jMenuHelpAbout_ActionAdapter implements ActionListener {
  NotepadFrame1 adaptee;
  NotepadFrame1_jMenuHelpAbout_ActionAdapter(NotepadFrame1 adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent actionEvent) {
    adaptee.jMenuHelpAbout_actionPerformed(actionEvent);
  }
}

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简单的GridView代码绑定（前台代码）

本文发布时间：2008-10-21 12:07　点击数：271

<%@ Page Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="Start.aspx.cs" Inherits="Start" Title="Untitled Page" %>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
<table style="width: 810px;">            
          <tr>
          <td style="width: 787px; height: 14px;" align="right">
              <asp:TextBox ID="TextBox1" runat="server" Width="156px"></asp:TextBox>
              <asp:Button ID="Button9" runat="server" Text="搜索" />
              <asp:Button ID="Button1" runat="server" Text="网站首页" />
              <asp:Button ID="Button3" runat="server" Text="热门小说" />
              <asp:Button ID="Button4" runat="server" Text="灵异小说" />
              <asp:Button ID="Button5" runat="server" Text="言情小说" />
              <asp:Button ID="Button6" runat="server" Text="玄幻小说" />
              <asp:Button ID="Button7" runat="server" Text="小说论坛" />
              <asp:Button ID="Button8" runat="server" Text="文学博客" />
          </td>
          </tr>
           
          <tr>
           
          <td style="height: 1764px; width: 787px;">
            <table style="width: 794px; height: 1776px" >
            <tr>
            <!--左侧导航-->
              <td style="width: 162px; height: 1819px; overflow: auto;">
              <table border="1">
                <tr>
                <!--导航-->
                <td style="vertical-align: top; width: 223px; height: 435px; text-align: left;" >
                  <asp:TreeView ID="TreeView1" runat="server" DataSourceID="XmlDataSource1" ImageSet="Arrows">
                      <ParentNodeStyle Font-Bold="False" />
                      <HoverNodeStyle Font-Underline="True" ForeColor="#5555DD" />
                      <SelectedNodeStyle Font-Underline="True" ForeColor="#5555DD" HorizontalPadding="0px"
                        VerticalPadding="0px" />
                      <DataBindings>
                        <asp:TreeNodeBinding DataMember="siteMapNode" TextField="title" />
                      </DataBindings>
                      <NodeStyle Font-Names="Verdana" Font-Size="8pt" ForeColor="Black" HorizontalPadding="5px"
                        NodeSpacing="0px" VerticalPadding="0px" />
                 
                  </asp:TreeView>
                  <asp:XmlDataSource ID="XmlDataSource1" runat="server" DataFile="~/XMLFile.xml"></asp:XmlDataSource>
                 
               
                </td>
                </tr>
                <tr>
                <!--用户注册-->
                <td style=" width: 223px; height: 149px; text-align: center; vertical-align: middle;">
                  用户名<asp:TextBox ID="TextBox2" runat="server" Height="14px" Width="113px"></asp:TextBox><br />
                  密   码<asp:TextBox ID="TextBox3" runat="server" Width="112px"></asp:TextBox><br />
                  验证码<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label><br />
                    <br />
                  <asp:Button ID="Button2" runat="server" Text="登陆" />
                     
                  <asp:Button ID="Button10" runat="server" Text="注册" /></td>
                </tr>
                <tr>
                <!--网站公告-->
                <td style="width: 223px; height: 298px">
                </td>
                </tr>
                <tr>
                <!--本站推荐-->
                <td style="width: 223px; height: 298px">
                </td>
                </tr>
                <tr>
                <!--本站推荐-->
                <td style="width: 223px; height: 298px">
                </td>
                </tr>
                <tr>
                <!--下载工具-->
                <td style="width: 223px; height: 265px">
                </td>
                </tr>
              </table>
              </td>
              <!--右侧主体-->
              <td style="width: 663px; vertical-align: text-top; overflow: scroll; text-align: center; height: 1819px;">
                <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" Width="492px" OnSelectedIndexChanged="GridView1_SelectedIndexChanged" CellPadding="4" ForeColor="#333333" GridLines="None" AllowPaging="True" PageSize="4" OnPageIndexChanging="GridView1_PageIndexChanging">
                <Columns>
                  <asp:TemplateField>
                    <ItemTemplate>
                        <table style="width:534px; height:100px; border:0">
                        <tr>
                        <td style="width:80px">
                          <asp:Image ID="Image1" runat="server" ImageUrl='<%# Eval("tupian") %>' /></td>
                        <td style="width: 343px">
                          <table style="width:100%; height:100%">
                            <tr>
                                <td align="left">图书编号：<asp:Label ID="Label1" runat="server" Text='<%# Eval("id") %>'></asp:Label>
                                        <asp:Button ID="Button1" runat="server" Text="购买" OnClick="Button1_Click" ToolTip='<%# Eval("id") %>' Width="151px" /></td>
                            </tr>
                            <tr>
                                <td align="left">图书名称：<asp:Label ID="Label2" runat="server" Text='<%# Eval("name") %>'></asp:Label></td>
                            </tr>
                            <tr>
                                <td align="left">图书类型：<asp:Label ID="Label3" runat="server" Text='<%# Eval("leixing") %>'></asp:Label>     图书单价：<asp:Label
                                  ID="Label4" runat="server" Text='<%# Eval("danjia") %>'></asp:Label></td>
                            </tr>
                            <tr>
                                <td align="left" style="height: 107px">详细信息：<asp:Label ID="Label5" runat="server" Text='<%# Eval("xinxi") %>' ></asp:Label></td>
                            </tr>
                          </table>
                        </td>
                        </tr>
                    </table>
                    </ItemTemplate>
                   
                  </asp:TemplateField>
                </Columns>
                    <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
                    <RowStyle BackColor="#EFF3FB" />
                    <PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
                    <SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
                    <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
                    <EditRowStyle BackColor="#2461BF" />
                    <AlternatingRowStyle BackColor="White" />
            </asp:GridView>
              </td>
            </tr>
            </table>
          </td>
           
          </tr>
        </table>    
</asp:Content>
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简单的GridView代码绑定（后台代码）

本文发布时间：2008-10-21 12:06　点击数：199

using System;
using System.Data;
//倒入
using System.Data.SqlClient;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class Start : System.Web.UI.Page
{
  //加载事件
  protected void Page_Load(object sender, EventArgs e)
  {
    if (!IsPostBack)
    {
        BindData();
    }
  }

  protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
  {
  }
  //数据库连接
  public void BindData()
  {
    SqlConnection con = new SqlConnection("server=.;uid=sa;pwd=;database=Bookhaha");
    SqlDataAdapter da = new SqlDataAdapter("Select * From Titles", con);
    DataSet ds = new DataSet();
    da.Fill(ds, "T");
    this.GridView1.DataSource = ds.Tables[0].DefaultView;
    //this.gvDemo.DataSource = ds.Tables[0].DefaultView;
    this.GridView1.DataBind();
    //this.gvDemo.DataBind();
    this.GridView1.DataSource = ds.Tables[0].DefaultView;
    this.GridView1.DataBind();
  }
  //电击按钮获取相应的编号并在Labe控件中显示
  protected void Button1_Click(object sender, EventArgs e)
  {
    GridViewRow gvr = ((Button)sender).Parent.Parent as GridViewRow;
    string sTitleID = ((Label)gvr.FindControl("Label1")).Text;
    Response.Write(sTitleID);
  }
  //GridView代码分页
  protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
  {
    this.GridView1.PageIndex = e.NewPageIndex;
    BindData();
  }
}
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求1~10的平方根和立方根

本文发布时间：2008-10-21 12:05　点击数：127

#include<stdio.h>
#include<math.h>
void main ()
{
int x=1;
double pingfang, lifang;
while(x<=10)
{
pingfang=sqrt(x);
lifang=pow(x,3);
printf("%d的平方根：%3.2f\t%d的立方：%5.0f\n",x,pingfang,x,lifang);
x++;
}
}

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按级别算工资

本文发布时间：2008-10-21 12:03　点击数：241

C语言-按级别算工资
#include<stdio.h>
void main()
{
float z,i,j,k;
int m=1000;
char y;
printf("请输入你的等级级别(a/b/c/d)并区分大小写：");
scanf("%c",&y);
switch (y)
{
case 'a':printf("\n你输入的等级是:%c",y);
z=m*0.45+m;
printf("\n你的工资为：%f",z);
break;
case 'b':printf("\n你输入的等级是:%c",y);
  i=m*0.40+m;
  printf("\n你的工资为：%f",i);
break;
case 'c':printf("\n你输入的等级是:%c",y);
  j=m*0.30+m;
  printf("\n你的工资为：%f",j);
break;
case 'd':printf("\n你输入的等级是:%c",y);
  k=m*0.25+m;
  printf("\n你的工资为：%f",k);
break;
default:printf("\n输入错误\n");
}
}

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