jdk1.8.0_251

要安装JDK 1.8.0_251，你可以按照以下步骤进行操作：

1. 首先，你需要卸载系统自带的JDK。通过命令 `rpm -qa | grep jdk` 或 `rpm -qa | grep gcj` 可以查找到系统自带的JDK。然后，通过命令 `yum -y remove java-1.8.0-openjdk-headless-1.8.0.242.b08-0.el7_7.x86_64` 进行卸载。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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