#进入oracle 源sudo add-apt-repository ppa:webupd8team/java#updatesudo apt-get update<span style="font-family: Arial, Helvetica, sans-serif;">#安装jdk</span>Oracle JDK 6sudo apt-get install oracle-java6-installerOracle JDK 7sudo apt-get install oracle-java7-installerOracle JDK 8sudo apt-get install oracle-java8-installer
</span></pre><pre name="code" class="plain">#懒人必备。</pre><pre name="code" class="plain">切换JDK环境：sudo update-alternatives --config javajava 的安装位置：/usr/lib/jvm/java-7-oracle
