Ubuntu配置JDK

1.下载Linux版本的JDKjava   2.解压安装linux sudo mkdir -p /usr/lib/jvm sudo mv jdk-8u74-linux-x64.tar.gz /usr/lib/jvm    cd /usr/lib/jvm   sudo tar zxvf jdk-8u74-linux-x64.tar.gz     3.配置环境变量vim vim /etc/prof

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