Ref: How to Install Java Runtime In Ubuntu 12.04If you have installed Ubuntu from scratch, most probably the java package is not installed by default. The java package is necessary to run any java-based app, including running java applets in the browser. While you may not use it i...【阅读全文】
Debian ships with OpenJDK by the default, but the Sun(now Oraclel)JDK have removed from repositories as a result of a new redistribution license recently. So it is not possible to install Oracle Java SDK from Debian's repo. The following step will tell you how to install Oracle Java SDK withou...【阅读全文】
ava HotSpot(TM) 64-Bit Server VM warning: Insufficient space for shared memory file: /tmp/hsperfdata_hadoop/2180此原因是由于磁盘满了造成的http://blog.sina.com.cn/s/blog_6e5e78bf0101nuyt.html【阅读全文】