我卸载了 jdk 包，现在无法重新安装它们。我设法安装了 oracle-java7-installer 和 oracle-java8-installer，但无法安装 oracle-java9-installer。当我可以下载的版本是 178 时，我的计算机似乎试图下载错误版本的 oracle-java9-installer 177。
$ wget http://download.java.net/java/jdk9/archive/178/binaries/jdk-9+178_linux-x64_bin.tar.gz
--2017-07-21 11:00:02-- http://download.java.net/java/jdk9/archive/178/binaries/jdk-9+178_linux-x64_bin.tar.gz
Connecting to 10.144.1.10:8080... connected.
Proxy request sent, awaiting response... 200 OK
Length: 293348142 (280M) [application/x-gzip]
Saving to: 'jdk-9+178_linux-x64_bin.tar.gz'
jdk-9+178_linux-x64_bin.tar.gz 1%[> ] 5.42M 5.04MB/s ^C
$ wget http://download.java.net/java/jdk9/archive/177/binaries/jdk-9+177_linux-x64_bin.tar.gz
--2017-07-21 11:00:16-- http://download.java.net/java/jdk9/archive/177/binaries/jdk-9+177_linux-x64_bin.tar.gz
Connecting to 10.144.1.10:8080... connected.
Proxy request sent, awaiting response... 404 Not Found
2017-07-21 11:00:17 ERROR 404: Not Found.
你能帮我吗？apt-get尝试安装 Oracle JDK 9。
我在由 win7 托管的虚拟机中运行 Ubuntu 16.04
完整的错误信息：
sudo apt-get install …