2020.01.06---------------------------------------------------------------------------------------------
安裝java8,此方法適用版本:
12.04 LTS (precise)
14.04 LTS (trusty)
16.04 LTS (xenial)
18.04 LTS (bionic)
1、 sudo add-apt-repository ppa:ts.sch.gr/ppa
sudo apt-get update
sudo apt-get install oracle-java8-installer
2、安裝完成後,運行"java -version"或者"javac -version"查看是否安裝成功。
3、java查詢信息顯示
Command ‘java’ not found, but can be installed with:
sudo apt install default-jre
sudo apt install openjdk-11-jre-headless
sudo apt install openjdk-8-jre-headless
4、根據提示,輸入
sudo apt install openjdk-8-jre-headless
5、安裝完成後,查詢java版本,顯示爲1.8,即java8安裝成功
6、運行"javac -version"查看是否安裝成功。
7、javac查詢信息顯示
Command ‘javac’ not found, but can be installed with:
sudo apt install default-jdk
sudo apt install openjdk-11-jdk-headless
sudo apt install ecj
sudo apt install openjdk-8-jdk-headless
8、根據提示,輸入
sudo apt install openjdk-8-jdk-headless
9、安裝完成後,查詢javac版本,顯示爲1.8,即java8安裝成功