<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[hwctl的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/hwctl</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; hwctl]]></copyright><item><title><![CDATA[java导出成Excel的方法（需要jxl.jar包）]]></title><link>https://blog.youkuaiyun.com/hwctl/article/details/6903418</link><guid>https://blog.youkuaiyun.com/hwctl/article/details/6903418</guid><author>hwctl</author><pubDate>Tue, 25 Oct 2011 11:55:53 +0800</pubDate><description><![CDATA[import java.io.File;
import java.sql.ResultSet;


import jxl.Workbook;
import jxl.write.Label;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;


import org.eclipse.swt.SWT]]></description><category></category></item><item><title><![CDATA[java 字符串解析]]></title><link>https://blog.youkuaiyun.com/hwctl/article/details/6903415</link><guid>https://blog.youkuaiyun.com/hwctl/article/details/6903415</guid><author>hwctl</author><pubDate>Tue, 25 Oct 2011 11:54:52 +0800</pubDate><description><![CDATA[StringTokenizer tokenizer = new StringTokenizer(number, ",");
        boolean bool = true;
        while (tokenizer.hasMoreTokens()) {
            try {
                Double.valueOf(tokenizer.ne]]></description><category></category></item><item><title><![CDATA[遗传算法]]></title><link>https://blog.youkuaiyun.com/hwctl/article/details/6903412</link><guid>https://blog.youkuaiyun.com/hwctl/article/details/6903412</guid><author>hwctl</author><pubDate>Tue, 25 Oct 2011 11:54:08 +0800</pubDate><description><![CDATA[import java.util.*;


public class Tsp {    
    private String cityName[]={"北京","上海","天津","重庆","哈尔滨","长春","沈阳","呼和浩特","石家庄","太原","济南","郑州","西安","兰州","银川","西宁","乌鲁木齐","合肥","南京","杭州","长沙","南昌","武汉"]]></description><category></category></item><item><title><![CDATA[人民币转成大写]]></title><link>https://blog.youkuaiyun.com/hwctl/article/details/6903411</link><guid>https://blog.youkuaiyun.com/hwctl/article/details/6903411</guid><author>hwctl</author><pubDate>Tue, 25 Oct 2011 11:53:25 +0800</pubDate><description><![CDATA[/**
     * 人民币转成大写
     * 
     * @param value
     * @return String
     */
    public static String hangeToBig(double value)
    {
        char[] hunit = { '拾', '佰', '仟' }; // 段内位置表示]]></description><category></category></item><item><title><![CDATA[java哈弗曼编码的实现]]></title><link>https://blog.youkuaiyun.com/hwctl/article/details/6903408</link><guid>https://blog.youkuaiyun.com/hwctl/article/details/6903408</guid><author>hwctl</author><pubDate>Tue, 25 Oct 2011 11:52:50 +0800</pubDate><description><![CDATA[//哈弗曼编码的实现类
public class HffmanCoding {
    private int charsAndWeight[][];// [][0]是 字符，[][1]存放的是字符的权值（次数）
    private int hfmcoding[][];// 存放哈弗曼树
    private int i = 0;// 循环变量
    private String]]></description><category></category></item><item><title><![CDATA[java各种数据库连接]]></title><link>https://blog.youkuaiyun.com/hwctl/article/details/6903406</link><guid>https://blog.youkuaiyun.com/hwctl/article/details/6903406</guid><author>hwctl</author><pubDate>Tue, 25 Oct 2011 11:52:09 +0800</pubDate><description><![CDATA[MySQL：    
    String Driver="com.mysql.jdbc.Driver";    //驱动程序
    String URL="jdbc:mysql://localhost:3306/db_name";    //连接的URL,db_name为数据库名    
    String Username="username";    //用户名
    Stri]]></description><category></category></item><item><title><![CDATA[点到线段的最短距离]]></title><link>https://blog.youkuaiyun.com/hwctl/article/details/6903401</link><guid>https://blog.youkuaiyun.com/hwctl/article/details/6903401</guid><author>hwctl</author><pubDate>Tue, 25 Oct 2011 11:51:35 +0800</pubDate><description><![CDATA[private double pointToLine(int x1, int y1, int x2, int y2, int x0,
                int y0) {
            double space = 0;
            double a, b, c;
            a = lineSpace(x1, y1, x2, y2);//]]></description><category></category></item><item><title><![CDATA[窗口居中显示的方法]]></title><link>https://blog.youkuaiyun.com/hwctl/article/details/6903399</link><guid>https://blog.youkuaiyun.com/hwctl/article/details/6903399</guid><author>hwctl</author><pubDate>Tue, 25 Oct 2011 11:50:58 +0800</pubDate><description><![CDATA[this.setLocationRelativeTo(null);
 public void setLocationRelativeTo(Component c)
设置窗口相对于指定组件的位置。  
如果组件当前未显示，或者 c 为 null，则此窗口将置于屏幕的中央。中点可以使用 GraphicsEnvironment.getCenterPoint 确定。  

如果该组件的底部在屏幕]]></description><category></category></item><item><title><![CDATA[JEditorPane使用技巧]]></title><link>https://blog.youkuaiyun.com/hwctl/article/details/6903394</link><guid>https://blog.youkuaiyun.com/hwctl/article/details/6903394</guid><author>hwctl</author><pubDate>Tue, 25 Oct 2011 11:50:26 +0800</pubDate><description><![CDATA[此组件使用 EditorKit 的实现来完成其操作。对于给予它的各种内容，它能有效地将其形态变换为适当的文本编辑器种类。该编辑器在任意给定时间的内容类型都由当前已安装的 EditorKit 确定。如果将内容设置为新的 URL，则使用其类型来确定加载该内容所应使用的 EditorKit。  
有多种方式可将内容加载到此组件中。  
1. 可使用 setText 方法来初始化字符串组件。在这种情况]]></description><category></category></item><item><title><![CDATA[java系统托盘的应用]]></title><link>https://blog.youkuaiyun.com/hwctl/article/details/6903388</link><guid>https://blog.youkuaiyun.com/hwctl/article/details/6903388</guid><author>hwctl</author><pubDate>Tue, 25 Oct 2011 11:49:45 +0800</pubDate><description><![CDATA[package com.msg;   
  
import java.applet.Applet;   
import java.applet.AudioClip;   
import java.awt.AWTException;   
import java.awt.Image;   
import java.awt.MenuItem;   
import java.awt.Pop]]></description><category></category></item><item><title><![CDATA[java获取ip地址]]></title><link>https://blog.youkuaiyun.com/hwctl/article/details/6903385</link><guid>https://blog.youkuaiyun.com/hwctl/article/details/6903385</guid><author>hwctl</author><pubDate>Tue, 25 Oct 2011 11:49:03 +0800</pubDate><description><![CDATA[import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.InetAddress;
import java.net.UnknownHostException;
import javax.swing.JButton;]]></description><category></category></item><item><title><![CDATA[java dos输入输出]]></title><link>https://blog.youkuaiyun.com/hwctl/article/details/6903382</link><guid>https://blog.youkuaiyun.com/hwctl/article/details/6903382</guid><author>hwctl</author><pubDate>Tue, 25 Oct 2011 11:48:23 +0800</pubDate><description><![CDATA[import java.util.*;
public class DaoXu {


    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO 自动生成方法存根
        System.out.println("请输入单个字符并回车: ");]]></description><category></category></item><item><title><![CDATA[java日期处理bean]]></title><link>https://blog.youkuaiyun.com/hwctl/article/details/6903379</link><guid>https://blog.youkuaiyun.com/hwctl/article/details/6903379</guid><author>hwctl</author><pubDate>Tue, 25 Oct 2011 11:47:47 +0800</pubDate><description><![CDATA[import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.regex.Pattern;


impor]]></description><category></category></item><item><title><![CDATA[java访问资源文件]]></title><link>https://blog.youkuaiyun.com/hwctl/article/details/6903375</link><guid>https://blog.youkuaiyun.com/hwctl/article/details/6903375</guid><author>hwctl</author><pubDate>Tue, 25 Oct 2011 11:46:53 +0800</pubDate><description><![CDATA[import java.io.FileInputStream;   
import java.io.FileOutputStream;   
import java.util.Properties;   
  
public class PropertyEditor {   
    public static void main(String[] args) throws Except]]></description><category></category></item><item><title><![CDATA[java自定义按钮外观]]></title><link>https://blog.youkuaiyun.com/hwctl/article/details/6903366</link><guid>https://blog.youkuaiyun.com/hwctl/article/details/6903366</guid><author>hwctl</author><pubDate>Tue, 25 Oct 2011 11:44:55 +0800</pubDate><description><![CDATA[import java.awt.FlowLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.UIManager;
import javax.swing.plaf.synth.SynthLookAndFeel;
 
public class MyButton {
 JFram]]></description><category></category></item><item><title><![CDATA[java jdbc数据库连接]]></title><link>https://blog.youkuaiyun.com/hwctl/article/details/6903364</link><guid>https://blog.youkuaiyun.com/hwctl/article/details/6903364</guid><author>hwctl</author><pubDate>Tue, 25 Oct 2011 11:43:36 +0800</pubDate><description><![CDATA[import java.io.InputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Proper]]></description><category></category></item><item><title><![CDATA[java访问xml文件]]></title><link>https://blog.youkuaiyun.com/hwctl/article/details/6903353</link><guid>https://blog.youkuaiyun.com/hwctl/article/details/6903353</guid><author>hwctl</author><pubDate>Tue, 25 Oct 2011 11:41:14 +0800</pubDate><description><![CDATA[Java code

import java.io.*;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Nod]]></description><category></category></item><item><title><![CDATA[Java常见面试题（含答案）]]></title><link>https://blog.youkuaiyun.com/hwctl/article/details/2473205</link><guid>https://blog.youkuaiyun.com/hwctl/article/details/2473205</guid><author>hwctl</author><pubDate>Fri, 23 May 2008 13:58:00 +0800</pubDate><description><![CDATA[第一，谈谈final, finally, finalize的区别。 final?修饰符（关键字）如果一个类被声明为final，意味着它不能再派生出新的子类，不能作为父类被继承。因此一个类不能既被声明为 abstract的，又被声明为final的。将变量或方法声明为final，可以保证它们在使用中不被改变。被声明为final的变量必须在声明时给定初值，而在以后的引用中只能读取，不可修改。被声明为fi]]></description><category></category></item><item><title><![CDATA[Java常见面试题（含答案）]]></title><link>https://blog.youkuaiyun.com/hwctl/article/details/2473202</link><guid>https://blog.youkuaiyun.com/hwctl/article/details/2473202</guid><author>hwctl</author><pubDate>Fri, 23 May 2008 13:57:00 +0800</pubDate><description><![CDATA[第一，谈谈final, finally, finalize的区别。 final?修饰符（关键字）如果一个类被声明为final，意味着它不能再派生出新的子类，不能作为父类被继承。因此一个类不能既被声明为 abstract的，又被声明为final的。将变量或方法声明为final，可以保证它们在使用中不被改变。被声明为final的变量必须在声明时给定初值，而在以后的引用中只能读取，不可修改。被声明为fi]]></description><category></category></item><item><title><![CDATA[ORACLE密码修改 ]]></title><link>https://blog.youkuaiyun.com/hwctl/article/details/1905781</link><guid>https://blog.youkuaiyun.com/hwctl/article/details/1905781</guid><author>hwctl</author><pubDate>Wed, 28 Nov 2007 13:20:00 +0800</pubDate><description><![CDATA[首先在命令行下设置ORACLE_SIDDOS>setORACLE_SID=SIDunix>exportORACLE_SID=SID然后sqlplus/nologconnect/@ora9assysdbaalteruserUSERNAMEidentifiedbyPASSWORD; ]]></description><category></category></item></channel></rss>