安装openjdk
sudo apt update
sudo apt install openjdk-8-jdk
命令行方式安装oracle Java JDK
sudo apt install python-software-properties
sudo add-apt-repository ppa:webupd8team/java
sudo apt update
sudo apt install oracle-java8-installer
使用最新版本的Gradle
sudo add-apt-repository ppa:cwchien/gradle
sudo apt update
sudo apt upgrade gradle
