下載完成後，我們得到一個dmg的安裝包，如下圖所示，名稱為 jdk-8u144-macosx-x64.dmg ，表示這是Java 8版本號為144的JDK安裝包。 雙擊dmg安裝包，開啟如下圖所示視窗。按照紅框的提示，便可輕鬆完成安裝。 再雙擊中間的pkg檔案，開始安裝，如下圖所示。. Desktop Central is a Windows Desktop Management Software for managing desktops in LAN and across WAN from a central location. It provides Software Deployment, Patch Management, Asset Management, Remote Control, Configurations, System Tools, Active Directory and User Logon Reports. Installation of Apache OpenMeetings 3.3.2 on macOS Sierra 10.12.6 It is tested with positive result. We will use the Apache's binary version OpenMeetings 3.3.2 stable, that is to say. 「Zero-copy」 describes computer operations in which the CPU does not perform the task of copying data from one memory area to another. This is frequently used to save CPU cycles and memory bandwidth when transmitting a file over a network.
In an earlier post, I described how to install the latest version of the Oracle Java JDK using homebrew. What hadn’t been completely obvious to me when I wrote the original blog post is that the ‘java’ cask will install the latest major version of the JDK. As a result, when I upgraded my JDK install today, I ended up with an upgrade from Java 8 to Java 9. On my personal machine that’s not a problem, but what if I wanted to stick with a specific major version of Java?
Turns out, there is actually another cask called “versions” that allows you to do exactly that. With just the ‘java’ cask installed, searching casks for “java” results in the following output
Jdk 8u144 Mac Os X X64 Dmg Iso
As you can see, it finds a single ‘java’ cask, which is the one I used in the previous blog post to install the current version of the JDK. Now let’s tap the “versions” cask as well:
Jdk 8u144 Mac Os X X64 Dmg Free
With the ‘versions’ cask tapped, let’s search the casks for “java” again:
You can see that the search now finds a few more casks, namely “charles-applejava”, “java6” and “java8”. Running ‘brew cask info’ on the two java casks shows that they’ll allow you to install the latest Java 6 and Java 8 JDKs:
After tapping the ‘versions’ cask, you can install the aforementioned Java 8, by running:
Jdk-8u144-macosx-x64.dmg
At this particular point, the default Java still points to /usr/bin/java. This launcher binary will start Java 9 by default. However, by pointing JAVA_HOME to one of the other installations, you can use the newly installed, latest version of Java 8:
Jdk 8u144 Mac Os X X64 Dmg Download
I wouldn’t be surprised if there is an easier way to start Java 8 or Java 6 after the installation of the version specific casks, but the above was a good enough starting point for my needs, plus I can always code up a little switcher utility in a shell script.
Jdk 8u144 Mac Os X X64 Dmg File
If you have an easier way to change Java versions that were installed using the various casks, please let me know in the comments.