学步园

在ubuntu12.04中，安装jdk发生下面错误

Package sun-java6-jdk is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package sun-java6-jdk has no installation candidate

网上有很多博客上用下面这个方法是解决不了问题的：

sudo add-apt-repository "deb http://archive.canonical.com/ lucid partner"
sudo apt-get update
sudo apt-get install sun-java6-jdk

错误提示还是一样的

真正的方法参考：http://blog.csdn.net/zjclugger/article/details/11762085