After i installed netbeans7.0, the language of is Chinese, thought i am a chinese, but of netbeans, i am not similar with the interface of Chinese, so i have to change the language to english.
open the /path_to_netbeans/etc/netbeans.conf, add the code as below:
netbeans_default_options="-J-client -J-Xss2m -J-Xms32m -J-XX:PermSize=32m -J-XX:MaxPermSize=200m -J-Xverify:none -J-Dapple.laf.useScreenMenuBar=true -J-Duser.language=zh -J-Duser.country=US"
Have fun with netbeans!