JBuilder光标问题的解决方案
大家常常说JBuilder在中文系统中存在光标错位的问题，都认为这是JBuilder的一个Bug，其实这实在是冤枉JBuilder了！大家讨论出来的解决方法无外乎两种：
1、将编辑器的字体改为宋体，用这种方法带来的问题是，在宋体下的英文字体实在难看，阅读起来不太顺眼；
2、就是将编辑器字体的粗体属性去掉，这样也影响代码的可读性。
其实，造成JBuilder光标错位的问题并不是Borland的错误，而是Java的宗师——Sun的罪过！大家一定知道i18n吧？在不同的区域设置中，JDK自动调用与之相对应的properties文件，而在JDK中，Sun所推出的与中文系统相对应的properties文件存在问题，在它之中没有区分英文字体的正常、粗体和斜体，从而导致了以上所说的问题，解决的方法很简单，只要将这个properties文件修改正确就可以了，修改方法如下：
在jre/lib目录中找到font.properties.zh文件，编辑这个文件并修改成如下内容：
# @(#)font.properties.zh1.16 00/10/06
#
# AWT Font default Properties for Chinese Windows
#
dialog.plain.0=Arial,ANSI_CHARSET
dialog.plain.1=\u5b8b\u4f53,GB2312_CHARSET
dialog.plain.2=WingDings,SYMBOL_CHARSET,NEED_CONVERTED
dialog.plain.3=Symbol,SYMBOL_CHARSET,NEED_CONVERTED
dialog.bold.0=Arial Bold,ANSI_CHARSET
dialog.bold.1=\u5b8b\u4f53,GB2312_CHARSET
dialog.bold.2=WingDings,SYMBOL_CHARSET,NEED_CONVERTED
dialog.bold.3=Symbol,SYMBOL_CHARSET,NEED_CONVERTED
dialog.italic.0=Arial Italic,ANSI_CHARSET
dialog.italic.1=\u5b8b\u4f53,GB2312_CHARSET
dialog.italic.2=WingDings,SYMBOL_CHARSET,NEED_CONVERTED
dialog.italic.3=Symbol,SYMBOL_CHARSET,NEED_CONVERTED
dialog.bolditalic.0=Arial Bold Italic,ANSI_CHARSET
dialog.bolditalic.1=\u5b8b\u4f53,GB2312_CHARSET
dialog.bolditalic.2=WingDings,SYMBOL_CHARSET,NEED_CONVERTED
dialog.bolditalic.3=Symbol,SYMBOL_CHARSET,NEED_CONVERTED
dialoginput.plain.0=Courier New,ANSI_CHARSET
dialoginput.plain.1=\u5b8b\u4f53,GB2312_CHARSET
dialoginput.plain.2=WingDings,SYMBOL_CHARSET,NEED_CONVERTED
dialoginput.plain.3=Symbol,SYMBOL_CHARSET,NEED_CONVERTED
dialoginput.bold.0=Courier New Bold,ANSI_CHARSET
dialoginput.bold.1=\u5b8b\u4f53,GB2312_CHARSET
dialoginput.bold.2=WingDings,SYMBOL_CHARSET,NEED_CONVERTED
dialoginput.bold.3=Symbol,SYMBOL_CHARSET,NEED_CONVERTED
dialoginput.italic.0=Courier New Italic,ANSI_CHARSET
dialoginput.italic.1=\u5b8b\u4f53,GB2312_CHARSET
dialoginput.italic.2=WingDings,SYMBOL_CHARSET,NEED_CONVERTED
dialoginput.italic.3=Symbol,SYMBOL_CHARSET,NEED_CONVERTED
dialoginput.bolditalic.0=Courier New Bold Italic,ANSI_CHARSET
dialoginput.bolditalic.1=\u5b8b\u4f53,GB2312_CHARSET
dialoginput.bolditalic.2=WingDings,SYMBOL_CHARSET,NEED_CONVERTED
dialoginput.bolditalic.3=Symbol,SYMBOL_CHARSET,NEED_CONVERTED
serif.plain.0=Times New Roman,ANSI_CHARSET
serif.plain.1=\u5b8b\u4f53,GB2312_CHARSET
serif.plain.2=WingDings,SYMBOL_CHARSET,NEED_CONVERTED
serif.plain.3=Symbol,SYMBOL_CHARSET,NEED_CONVERTED
serif.bold.0=Times New Roman Bold,ANSI_CHARSET
serif.bold.1=\u5b8b\u4f53,GB2312_CHARSET
serif.bold.2=WingDings,SYMBOL_CHARSET,NEED_CONVERTED
serif.bold.3=Symbol,SYMBOL_CHARSET,NEED_CONVERTED
serif.italic.0=Times New Roman Italic,ANSI_CHARSET
serif.italic.1=\u5b8b\u4f53,GB2312_CHARSET
serif.italic.2=WingDings,SYMBOL_CHARSET,NEED_CONVERTED
serif.italic.3=Symbol,SYMBOL_CHARSET,NEED_CONVERTED
serif.bolditalic.0=Times New Roman Bold Italic,ANSI_CHARSET
serif.bolditalic.1=\u5b8b\u4f53,GB2312_CHARSET
serif.bolditalic.2=WingDings,SYMBOL_CHARSET,NEED_CONVERTED
serif.bolditalic.3=Symbol,SYMBOL_CHARSET,NEED_CONVERTED
sansserif.plain.0=Arial,ANSI_CHARSET
sansserif.plain.1=\u5b8b\u4f53,GB2312_CHARSET
sansserif.plain.2=WingDings,SYMBOL_CHARSET,NEED_CONVERTED
sansserif.plain.3=Symbol,SYMBOL_CHARSET,NEED_CONVERTED
sansserif.bold.0=Arial Bold,ANSI_CHARSET
sansserif.bold.1=\u5b8b\u4f53,GB2312_CHARSET
sansserif.bold.2=WingDings,SYMBOL_CHARSET,NEED_CONVERTED
sansserif.bold.3=Symbol,SYMBOL_CHARSET,NEED_CONVERTED
sansserif.italic.0=Arial Italic,ANSI_CHARSET
sansserif.italic.1=\u5b8b\u4f53,GB2312_CHARSET
sansserif.italic.2=WingDings,SYMBOL_CHARSET,NEED_CONVERTED
sansserif.italic.3=Symbol,SYMBOL_CHARSET,NEED_CONVERTED
sansserif.bolditalic.0=Arial Bold Italic,ANSI_CHARSET
sansserif.bolditalic.1=\u5b8b\u4f53,GB2312_CHARSET
sansserif.bolditalic.2=WingDings,SYMBOL_CHARSET,NEED_CONVERTED
sansserif.bolditalic.3=Symbol,SYMBOL_CHARSET,NEED_CONVERTED
monospaced.plain.0=Courier New,GB2312_CHARSET
monospaced.plain.1=\u5b8b\u4f53,GB2312_CHARSET
monospaced.plain.2=WingDings,SYMBOL_CHARSET,NEED_CONVERTED
monospaced.plain.3=Symbol,SYMBOL_CHARSET,NEED_CONVERTED
monospaced.bold.0=Courier New Bold,GB2312_CHARSET
monospaced.bold.1=\u5b8b\u4f53,GB2312_CHARSET
monospaced.bold.2=WingDings,SYMBOL_CHARSET,NEED_CONVERTED
monospaced.bold.3=Symbol,SYMBOL_CHARSET,NEED_CONVERTED
monospaced.italic.0=Courier New Italic,GB2312_CHARSET
monospaced.italic.1=\u5b8b\u4f53,GB2312_CHARSET
monospaced.italic.2=WingDings,SYMBOL_CHARSET,NEED_CONVERTED
monospaced.italic.3=Symbol,SYMBOL_CHARSET,NEED_CONVERTED
monospaced.bolditalic.0=Courier New Bold Italic,GB2312_CHARSET
monospaced.bolditalic.1=\u5b8b\u4f53,GB2312_CHARSET
monospaced.bolditalic.2=WingDings,SYMBOL_CHARSET,NEED_CONVERTED
monospaced.bolditalic.3=Symbol,SYMBOL_CHARSET,NEED_CONVERTED
# name aliases
#
#alias.timesroman=serif
#alias.helvetica=sansserif
#alias.courier=monospaced
# for backward compatibility
#timesroman.0=Times New Roman,ANSI_CHARSET
#helvetica.0=Arial,ANSI_CHARSET
#courier.0=Courier New,ANSI_CHARSET
zapfdingbats.0=WingDings,SYMBOL_CHARSET
# font filenames for reduced initialization time
#
filename.\u5b8b\u4f53=SIMSUN.TTF
filename.Arial=ARIAL.TTF
filename.Arial_Bold=ARIALBD.TTF
filename.Arial_Italic=ARIALI.TTF
filename.Arial_Bold_Italic=ARIALBI.TTF
filename.Courier_New=COUR.TTF
filename.Courier_New_Bold=COURBD.TTF
filename.Courier_New_Italic=COURI.TTF
filename.Courier_New_Bold_Italic=COURBI.TTF
filename.Times_New_Roman=TIMES.TTF
filename.Times_New_Roman_Bold=TIMESBD.TTF
filename.Times_New_Roman_Italic=TIMESI.TTF
filename.Times_New_Roman_Bold_Italic=TIMESBI.TTF
filename.WingDings=WINGDING.TTF
filename.Symbol=SYMBOL.TTF
# Default font definition
#
default.char=2751
# Static FontCharset info.
#
#fontcharset.dialog.0=sun.io.CharToByteCp1252
fontcharset.dialog.1=sun.io.CharToByteGBK
fontcharset.dialog.2=sun.awt.windows.CharToByteWingDings
fontcharset.dialog.3=sun.awt.CharToByteSymbol
#fontcharset.dialoginput.0=sun.io.CharToByteCp1252
fontcharset.dialoginput.1=sun.io.CharToByteGBK
fontcharset.dialoginput.2=sun.awt.windows.CharToByteWingDings
fontcharset.dialoginput.3=sun.awt.CharToByteSymbol
#fontcharset.serif.0=sun.io.CharToByteCp1252
fontcharset.serif.1=sun.io.CharToByteGBK
fontcharset.serif.2=sun.awt.windows.CharToByteWingDings
fontcharset.serif.3=sun.awt.CharToByteSymbol
#fontcharset.sansserif.0=sun.io.CharToByteCp1252
fontcharset.sansserif.1=sun.io.CharToByteGBK
fontcharset.sansserif.2=sun.awt.windows.CharToByteWingDings
fontcharset.sansserif.3=sun.awt.CharToByteSymbol
#fontcharset.monospaced.0=sun.io.CharToByteCp1252
fontcharset.monospaced.1=sun.io.CharToByteGBK
fontcharset.monospaced.2=sun.awt.windows.CharToByteWingDings
fontcharset.monospaced.3=sun.awt.CharToByteSymbol
# Exclusion Range info.
#
exclusion.dialog.plain.0=00a0-f8ff
exclusion.dialog.italic.0=00a0-f8ff
exclusion.dialog.bold.0=00a0-f8ff
exclusion.dialog.bolditalic.0=00a0-f8ff
exclusion.dialoginput.plain.0=00a0-f8ff
exclusion.dialoginput.italic.0=00a0-f8ff
exclusion.dialoginput.bold.0=00a0-f8ff
exclusion.dialoginput.bolditalic.0=00a0-f8ff
exclusion.serif.plain.0=00a0-f8ff
exclusion.serif.italic.0=00a0-f8ff
exclusion.serif.bold.0=00a0-f8ff
exclusion.serif.bolditalic.0=00a0-f8ff
exclusion.sansserif.plain.0=00a0-f8ff
exclusion.sansserif.italic.0=00a0-f8ff
exclusion.sansserif.bold.0=00a0-f8ff
exclusion.sansserif.bolditalic.0=00a0-f8ff
exclusion.monospaced.italic.0=00a0-f8ff
exclusion.monospaced.bold.0=00a0-f8ff
exclusion.monospaced.bolditalic.0=00a0-f8ff
# charset for text input
# inputtextcharset=GB2312_CHARSET
保存后，一切问题就解决了！
这种方法也适用于任何相同的问题。
[题外话]这种错误SUN真的应该好好反省一下了，希望以后他们做的东西能够测试更好一些。
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