摘要：
Switching between installed Java versions can be accomplished using the update alternatives command.To get a list of your installed Java platforms, run the following command from the terminal:sudo update-alternatives --config javaThis will give you a list output similar to this:There are 2 choices f 阅读全文
摘要：
If you've downloaded Eclipse from their official website, follow these steps for the installation. (Ubuntu 12.04 LTS)Extract the eclipse.XX.YY.tar.gz usingtar -zxvf eclipse.XX.YY.tar.gzCopy the extracted folder to /optsudo cp -r eclipse.XX.YY /optCreate a desktop file and install it:gedit eclips 阅读全文