Java 各版本的差異

First (JDK 1.0) edition

    Objects. Inheritance. Interfaces. Graphics. AWT. Applets. Data Structures. Streams. Multithreading. Network programming.

Second (JDK 1.02) edition

    Additional topics: Object streams. JDBC. RMI. Native methods.

Third (JDK 1.1) Edition

    Split into a two volume set. Additional topics in volume 1: Inner classes. Events. Printing. JAR files. In volume 2: Security. Signed applets. Advanced AWT. JavaBeans.

Fourth (Java SE 1.2) Edition

    Moved streams to volume 1. Additional topics in volume 1: Swing. Java Plug-In. All examples have been rewritten to use Swing. Additional topics in volume 2: 2D Graphics. Advanced Swing components. Container classes.

Fifth (Java SE 1.3/1.4) Edition

    Rewrite of first six chapters. Proxies. Additional debugging tips. Moved some Swing components from volume 2. Code with line numbers. Figures more UML compliant. More Unix/Linux coverage. Removed corejava package.

Sixth (Java SE 1.4) Edition

    Added coverage of 1.4 features: Logging, regular expressions, NIO file channels, preferences API, Java Web Start,  formatted text fields,  new focus architecture, more events (mouse wheel etc.), new frame functionality, spinners, spring layouts, assertions. Numerous bug fixes and updates throughout all chapters.

Seventh (Java SE 5.0) Edition

    Added coverage of 5.0 features: Generic classes, autoboxing, varargs, enumerated types, annotations, java.util.concurrent. Numerous bug fixes and updates throughout all chapters.

8th (Java SE 6) Edition

    Coverage of Java SE 6 features. Collections and multithreading moved to volume 1. New material on Swing and AWT enhancements, compiler and scripting APIs. Numerous bug fixes and updates throughout all chapters.

參考來源1
參考來源2

產生Javadoc出現錯誤 unmappable character for encoding MS950

VM option：-encoding utf-8 -charset utf-8
在VM option填入後Finish，即可解決。

清除按鈕功能

不需要被清除的field
clearDefault="初始值" 或 <script type="text/javascript">form1.fieldName.clearDefault="初始值";</script>
清除按鈕 onclick="clearValue();"

function clearValue(){
 for(var i=0; i<document.forms[0].elements.length; i++){
  obj = document.forms[0].elements[i];
  if("field_Q" == obj.className){
   if( undefined == obj.clearDefault ){
    if("text" == obj.type) {
     obj.value = "";
    } else if("checkbox" == obj.type) {
     obj.checked = false;
    } else if("radio" == obj.type) {
     obj.checked = false;
    } else if("select" == obj.type) {
     obj.selectedIndex = 0;
    }
   } else {
    if("text" == obj.type) {
      obj.value = obj.clearDefault;
    } else if("checkbox" == obj.type) {
     if(obj.value == obj.clearDefault) obj.checked = true;
    } else if("radio" == obj.type) {
     if(obj.value == obj.clearDefault) obj.checked = true;
    } else if("select" == obj.type) {
     obj.options.value = obj.clearDefault;
    }
   }
  }
 }
}

不需要下面list，不需要執行queryAll()

將整個queryone()的JSP展開。
<div id="formContainer"> 改成 <div id="formContainerAll">

【IE8】開啟新索引標籤，無法顯示已關閉的索引標籤、使用 InPrivate 瀏覽、使用 [加速器]等選項，會出現錯誤

IE8 開啟新索引標籤，找不到元素tabswelcome.htm的解決方法：
開始 → 執行 → 打入regedit，然後確定 → 找到
HKEY_CLASSES_ROOT\TypeLib\{EAB22AC0-30C1-11CF-A7EB-0000C05BAE0B}\1.1\0\win32

如果右邊預設值顯示 C:\WINDOWS\system32\shdocvw.dll
將它修改為 C:\WINDOWS\system32\ieframe.dll

參考來源

Win 2K、XP 錯誤編號詳解

參考資料：Windows 2000/Xp 錯誤編號詳解、Windows Support Center

Windows 2000/Xp 錯誤編號詳解（收集整理）

【MEMO】Learn Android Remark

SuperBean.java 執行 db.excuteSQL(sql.toString());會出現Exception

參照：
SuperBean.java
public void insert2SYSLog(String action_flag, String[] sqlArray)



解決：在執行db.excuteSQL之前，將sql replace所有\n為空白即可。

原因：java.lang.Exception: java.sql.SQLException: Invalid SQL statement or JDBC escape, terminating ''' not found.
at util.Database.excuteSQL(Database.java:237)
at util.SuperBean.insert2SYSLog(SuperBean.java:334)
at util.SuperBean.insert(SuperBean.java:221)
at org.apache.jsp.cri.nu.crinu010f_jsp._jspService(crinu010f_jsp.java:137)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:386)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at filter.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:123)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.sql.SQLException: Invalid SQL statement or JDBC escape, terminating ''' not found.
at net.sourceforge.jtds.jdbc.SQLParser.parse(SQLParser.java:1155)
at net.sourceforge.jtds.jdbc.SQLParser.parse(SQLParser.java:156)
at net.sourceforge.jtds.jdbc.JtdsStatement.executeImpl(JtdsStatement.java:584)
at net.sourceforge.jtds.jdbc.JtdsStatement.executeUpdate(JtdsStatement.java:1042)
at net.sourceforge.jtds.jdbc.JtdsStatement.executeUpdate(JtdsStatement.java:999)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.logicalcobwebs.proxool.ProxyStatement.invoke(ProxyStatement.java:100)
at org.logicalcobwebs.proxool.ProxyStatement.intercept(ProxyStatement.java:57)
at $java.sql.Wrapper$$EnhancerByProxool$$dde8129e.executeUpdate(<generated>)
at util.Database.excuteSQL(Database.java:233)
... 24 more

【IE】marquee標籤無法運作，沒有錯誤訊息

工具 → 網際網路選項 → 進階

要勾選「多媒體」播放網頁動畫，才會有作用。

Cell Constant Field Values

http://poi.apache.org/apidocs/constant-values.html

http://justdoblogger.com/blog/200911/getcelltype.html