CentOS7安装JDK

在CentOS7上安装JDK有几种方法。首先，你可以使用Yum包管理器来安装OpenJDK。你可以通过以下步骤来完成这个过程：首先，检查是否已经安装了JDK，可以使用命令"rpm -qa | grep java"来检查。如果已经安装了JDK，你可以使用"rpm -e"命令来卸载它。然后，使用Yum安装OpenJDK。另外，你也可以通过下载JDK的压缩包来安装。你可以通过以下步骤来完成这个过程：首先，下载JDK的压缩包。然后，将下载的压缩包上传到服务器并解压。最后，配置环境变量。这些是在CentOS7上安装JDK的几种方法。\[1\]\[3\]
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