`apt-get install` 可以用于 JDK 吗?
我使用 linux 机器不到两周，所以我对 Linux 非常陌生.
I've been using a linux machine for less than two weeks, so I am extremely new to Linux.
我还想安装 Java Developers Kit.这应该怎么做?是否有 apt-get 命令，或者我应该直接点击 Sun 网站上的下载按钮?
I'd also like to install the Java Developers Kit. How should this be done? Is there an apt-get command, or should I just click on the download button at Sun's website?
我确信有不止一种方法可以做到这一点，而且可能并不重要，但我对 apt-get install 在安装 PHP 和 MySQL 时的流畅性印象深刻，所以如果有一个正确的方法可以做到这一点，我想知道.
I'm sure there is more than one way to do this, and it probably doesn't matter much, but I was impressed with how smoothly apt-get install worked when installing PHP and MySQL, so if there is a right way to do this, I'd like to know.
我使用的是 Ubuntu 9.04 版
I'm using Ubuntu version 9.04
推荐答案
Oracle JDK 不再包含在 Ubuntu 存储库中.根据https://stackoverflow.com/a/15543636/192221，可以使用以下ppa:
The Oracle JDK is no longer included in the Ubuntu repos. According to https://stackoverflow.com/a/15543636/192221 , the following ppa can be used:
echo "deb http://ppa.launchpad.net/webupd8team/java/ubuntu precise main" | tee -a /etc/apt/sources.list
echo "deb-src http://ppa.launchpad.net/webupd8team/java/ubuntu precise main" | tee -a /etc/apt/sources.list
apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys EEA14886
apt-get update
apt-get install oracle-java7-installer
如果你已经安装了 OpenJDK，你可能需要使用
If you have OpenJDK installed already, you might need to use
update-alternatives --config java
默认使用 Oracle Java.
to use the Oracle Java by default.
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