安裝openjdk8的jdk
sudo apt-get install openjdk-8-jdk 安裝openjdk8的jre
sudo apt-get install openjdk-8-jre 錯誤一：
https://blog.csdn.net/quantum7/article/details/103362057安裝openjdk8的jdk
sudo apt-get install openjdk-8-jdk 安裝openjdk8的jre
sudo apt-get install openjdk-8-jre 錯誤一：
https://blog.csdn.net/quantum7/article/details/103362057![Java String.format方法的簡單使用[圖]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)