1. Chrome
sudo wget http://www.linuxidc.com/files/repo/google-chrome.list -P /etc/apt/sources.list.d/ wget -q -O - https://dl.google.com/linux/linux_signing_key.pub | sudo apt-key add - sudo apt-get update sudo apt-get install google-chrome-stable
2. JDK8
sudo add-apt-repository ppa:webupd8team/java sudo apt-get update sudo apt-get install oracle-java8-installer
3. Fcitx
sudo add-apt-repository ppa:fcitx-team/stable sudo apt-get update sudo apt-get install fcitx
4. Flash
open Software & Updates and on the tab "Other Software" make sure Canonical Partners is ticked
sudo apt update sudo apt install adobe-flashplugin
5. ShadowSocks
sudo add-apt-repository ppa:max-c-lv/shadowsocks-libev sudo apt-get update sudo apt install shadowsocks-libev