) Download the source code$ cd ~$ HG clone http://hg.openjdk.java.net/jdk7u/jdk7u60 openjdk-7-src$ CD openjdk-7-src$ Sh./get_source.shThis will allow the source code to be downloaded to the OPENJDK-7-SRC directory.Please don't get the source code like this:$ mkdir ~/jdk$ CD ~/jdk/$ wget Http://www.java.net/download/openjdk
SVN admin setup under centos6.5 environmentSVN protocol InstanceFirst, install the JDKThere are two ways to install the JDK: one is to decompress the tar.gz configuration installation and one is the RPM installation.A, tar.gz Package installation method1. First look at the OPENJDK installation package#rpm-qa |grep JavaTzdata-java-2013b-1.el6.noarchJava-1.6.0-openjdk-1.6.0.0-1.61.1.11.11.el6_4.x86_64Java-1.7
Bought "in-depth understanding of Java Virtual Machine" Zhou Zhiming this book has not been seen, our programs are running with the JVM, so learning Java must master the JVM, in order to understand what our object is doing. 1. Why to compile the JDK to explore the internal implementation mechanism of the JDK, one of the most convenient path is to compile a set of JDK itself, through reading and tracking debugging JDK source code to understand the principles of Java technology system, although th
Practical Android skills: Switch JDK under Ubuntu
After Android L, we recommend that you use JDK 7 to compile the program. This is a natural development rule, just like compiling Android 1.6 4 years ago and using JDK 5.
Multi-version JDK can coexist. You only need to use the update-alternatives tool to switch between them at any time. The following describes how to install openjdk and oracle jdk (cannot cope with sun) and switch the version.1. Install
Environmental Information
CentOS Linux release 7.4.1708 (Core)jdk1.8.0_172 Uninstall OpenJDK
Run the command at the terminal to see if there is an installation openjdk
[Vagrant@localhost ~]$ java-version
openjdk version "1.8.0_161" OpenJDK the Runtime Environment
(build 1.8.0_161- B14)
First, install the JDK:RPM Installation:# RPM-IVH jdk-8u45-linux-x64.rpmIn the case of a Debian system, tar. Unzip tar.gz to/usr/local/java/and create the corresponding link file. Such as:$ ll/usr/local/java/Total usage 4lrwxrwxrwx 1 root root 6 June 22:31 Default-latestdrwxr-xr-x 8 UUCP 143 4096 April 11 01:26 jdk1.8.0_45lrwxrwxrwx 1 root root 28 June 22:30 latest-/usr/local/java/jdk1.8.0_45/Second, the configuration:Create the/etc/profile.d/java.sh and edit the configuration file:$ cat/etc/pro
Recently used more Linux, in the Web site to find some of the JDK installation of Linux tutorial, the process is some but a lot of details are not shown, so I spent a bit of time to summarize, I hope that everyone can help ...CentOS under JDK1.7 Installation and configuration ( Linux )First, before installing Sun's JDK, check to see if the JDK is installed on the system. In general, the CentOS system installs OPENJDK by default, but the
35th in the/etc/x11/xinit/xinitrc.d/infinality-settings.sh file to Ultimate3 (author recommended settings).For Java programs, font rendering is always worse than system-native font rendering in Linux environments. The main reason is that Oracle's official Java built a private font rendering engine, unable to use the system's FreeType and Fontconfig configuration, and rendering effect is poor, and Microsoft ClearType similar rendering effect. OpenJDK
not look down, so that the Java executable file run directory is not $java_home/bin, and in other directories, it can cause a lot of problems. 4, after writing, we press the keyboard (ESC) button to exit, and then press (: WQ) to save and turn off vim. 5, after the configuration is complete, the most important step is to make the file effective immediatelySource/etc/profile3 Verifying successJava-versionecho $JAVA _home4 Uninstalling the JDK first execute the command to view the version of the
Today for Hadoop configuration Zeromq, JZMQ encountered a variety of problems, first compile error, to compile a successful test error, and so on, the following I encountered the problem to share with you.The first note is: You must compile and install ZEROMQ, and then compile JZMQ, otherwise you will be reported zmq.h file cannot be found.Official installation Configuration link: Http://zeromq.org/bindings:javaStep 1: Install the necessary dependent packages:sudo Yum Install GCC GCC make Libuu
Many articles on the Internet, but I still do not know who needs to see next time, or to recommend to friends who, simply I have to organize out, convenient next time you need to be able to quickly see or link to a friend.Two mounting methods: decompression, installation and package installation1. Pre-installation check:Because of the different services selected when installing the system, sometimes the service system we choose does not pre-install OPENJDK
After the CentOS operation is installed, the system has its own openjdk, first view the relevant installation information:
1. You can use the Java-version command to view the system's own version information with JDK
$ java-version
Java Version "1.7.0_19"OpenJDK Runtime Environment (RHEL-2.3.9.1.EL6_4-X86_64)OpenJDK 64-bit Server VM (build 23.7-b01, Mixed mode)2.
[Excellent] complete steps for installing JDK in Linux: Share with linuxjdkEnvironment preparation: Operating System: Centos6.9 java installation package: jdk-8u162-linux-x64.tar.gz1. Check the jdk version in the system.
[root@localhost software]# java -version
Display:
openjdk version "1.8.0_102"OpenJDK Runtime Environment (build 1.8.0_102-b14)OpenJDK 64-Bit Ser
This article was reproduced from: http://blog.csdn.net/lincyang/article/details/42024565Android L recommended using the JDK7 compiler, which is the natural evolution of the law, just like 4 years ago to compile Android 1.6 needs to use JDK5.Multiple versions of the JDK can coexist, and you can switch them at any time using the Update-alternatives tool. The procedures for installing OPENJDK and Oracle JDK (Sun) and switching versions are described belo
Android L recommended using the JDK7 compiler, which is the natural evolution of the law, just like 4 years ago to compile Android 1.6 needs to use JDK5.Multiple versions of the JDK can coexist, and you can switch them at any time using the Update-alternatives tool. The procedures for installing OPENJDK and Oracle JDK (Sun) and switching versions are described below.First, install the OPENJDK7$ sudo apt-get update$ sudo apt-get install
Step 1: Check whether the built-in JDK of Linux is installed (uninstall centOS 1.6 installed). after CentOS is installed, it comes with OpenJdk. run the java-version command. the following information is displayed: javaversion quot; 1.6.0 quot; OpenJDKRuntimeEnvironment (build1.6.0-b09) OpenJDK64-BitS
Step 1: Check whether the built-in JDK of Linux is installed (uninstall centOS 1.6 installed)
The installed CentOS comes with
It takes a long time to Yi the whole openjdk, and there are a lot of things that are not needed. In the case of a hotspot, it's just a matter of the code on the Hotspot section.Below is a simple record under Yi debugging hotspot some steps.I. Compilation of YiEnter Hotsopt's Make directory:
1
cdcode/cpp/openjdk/hotspot/make/
You can see a lot of useful information with make h
Want to know how to install Java in Ubuntu 14.04? Installing Java is definitely one of the first things to do after installing Ubuntu 14.04 (see http://www.linuxidc.com/Linux/2014-04/100398.htm), and it's easy.Many people hate Java, but there's a good chance you'll need to install Java for some reason, even if you hate it. In this article, we'll show you how to install Java in Ubuntu 14.04 (and possibly the same for Linux Mint 17).JRE vs OpenJDK vs Or
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