Linux安裝及升級jdk1.8

到官網下載jdk http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html 解壓文件包 tar -zxvf jdk-8u144-linux-x64.tar.gz 將解壓的文件移動到/usr/local/下 mv jdk1.8.0_144 /usr/local/jdk1.8 在/etc/pr

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