Does NetBeans only support the Java language? Can I code in other languages in NetBeans?
NetBeans now has a C/C++ pack which can be used with NetBeans 5.5 and higher, you can download the development pack from the NetBeans site. Follow THIS link.
Here is a list of other languages that have plugin support for NetBeans:
Searching google for plugins or searching the netbeans plugin sites will often return some usefull plugins that you can use as well. Have a look at nbeXtras for some plugins.