JBuilder在中文系统中存在光标错位的问题，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.zh 1.10 02/03/07
#
# Copyright 2002 Sun Microsystems, Inc. All rights reserved.
#
# Component Font Mappings
#
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
# Font File Names
#
filename.\u5b8b\u4f53=SIMSUN.TTC
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
# Missing Glyph Character
#
default.char=2751
# Component Font Character Encodings
#
fontcharset.dialog.1=sun.io.CharToByteGBK
fontcharset.dialog.2=sun.awt.windows.CharToByteWingDings
fontcharset.dialog.3=sun.awt.CharToByteSymbol
fontcharset.dialoginput.1=sun.io.CharToByteGBK
fontcharset.dialoginput.2=sun.awt.windows.CharToByteWingDings
fontcharset.dialoginput.3=sun.awt.CharToByteSymbol
fontcharset.serif.1=sun.io.CharToByteGBK
fontcharset.serif.2=sun.awt.windows.CharToByteWingDings
fontcharset.serif.3=sun.awt.CharToByteSymbol
fontcharset.sansserif.1=sun.io.CharToByteGBK
fontcharset.sansserif.2=sun.awt.windows.CharToByteWingDings
fontcharset.sansserif.3=sun.awt.CharToByteSymbol
fontcharset.monospaced.0=sun.io.CharToByteGBK
fontcharset.monospaced.1=sun.io.CharToByteGBK
fontcharset.monospaced.2=sun.awt.windows.CharToByteWingDings
fontcharset.monospaced.3=sun.awt.CharToByteSymbol
# Exclusion Ranges
#
exclusion.dialog.0=0100-20ab,20ad-f8ff
exclusion.dialoginput.0=0100-20ab,20ad-f8ff
exclusion.serif.0=0100-20ab,20ad-f8ff
exclusion.sansserif.0=0100-20ab,20ad-f8ff
exclusion.monospaced.0=0100-20ab,20ad-f8ff
# Text Input Character Set
#
inputtextcharset=GB2312_CHARSET