openjdk source

Installing JDK SE1.8 with CentOS The Yum are usually installed through the OpenJDK Typically used when developing on a Windows platform is SUNJDK To avoid possible problems, uninstall your own OPENJDK installation SUNJDK View the OPENJDK version first Yum List installed |grep Java Yum-y Remove java-1.6.0-openjdk.x86_64 Delete

View the JDK version installed by the system [email protected]: ~# java-versionJava Version "1.7.0_79"OpenJDK Runtime Environment (IcedTea 2.5.5) (7U79-2.5.5-0UBUNTU1)OpenJDK 64-bit Server VM (build 24.79-b02, Mixed mode)2. Upload the JDK to the/OPT directory[email protected]: ~# cd/opt[email protected]:/opt# lsJdk-6u45-linux-x64.bin3. Modify the permissions of the JDK[email protected]:/opt# chmod +x J

=.: $ JAVA_HOME/lib: $ JAVA_HOME/jre/lib Next # Source/root/. bashrc switch to your user and then under source.# Echo $ JAVA_HOME/Usr/java/java7 If openjdk is not installed, enter #/Usr/java/java7/bin/java-version Now let's start the link. add to the bin of the system and use the update-alternatives command to maintain the soft connection of the system. update t

Because compiling Android source code requires openjdk1.7.x version. Ubuntu 16.04 comes with a 1.8.X version of OPENJDK.sudo apt-get install openjdk-7-jre or sudo apt-get install OPENJDK-7-JDKIf it appearsThere is no available package openjdk-7-jdk, but it is referenced by other packages.This may mean that the missing

Original address: Https://marcin-chwedczuk.github.io/debugging-openjdk8-with-netbeans-on-ubuntuThe overview is as follows:1 is of course download openjdk. I chose jdk8u, which is the mainstream version of the current major companies, in addition Jdk9 and JDK10 directory structure compared with the traditional directory structure has changed, from the existing data to find the relevant code will increase the difficulty. Two ways to download:1) HG clone

Author: fbysssQQ: Wine bar Bar I scatteredBlog:blog.csdn.net/fbysssDisclaimer: This article by fbysss original, reproduced please indicate the source Preface: Under CentOS, Java is already installed, version 1.7, but there are no environment variables such as Java_home. So: Export java_home=/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.9 Export classpath=.: $JAVA _home/jre/lib/rt.jar: $JAVA _home/lib/dt.jar: $JAV

recommended to modify this file, but in PROFILE.D below the new user's own configuration file. This will take effect as well.[Email protected] profile.d]# pwd/etc/profile.d[Email protected] profile.d]# touch jdk.sh[Email protected] profile.d]# VI jdk.shAdd the following to the jdk.sh file:Export java_home=/usr/java/jdk1.8.0_65Export path= $JAVA _home/bin: $PATHExport classpath=.: $JAVA _home/lib/dt.jar: $JAVA _home/lib/tools.jarAfter saving, then execute the following command:[Email protected]

Export Java_home=/opt/java/jdk1.8.0_172export classpath=.: $JAVA _home/jre/lib/rt.jar: $JAVA _home/lib/dt.jar: $JAVA _ Home/lib/tools.jarexport path= $PATH: $JAVA _home/bin　　Delete OpenJDKThe installed CentOS will bring openjdk, with the command java-version, will have the following information:" 1.6.0 " 1.6. 0-1.6. 0-b09, mixed mode)It is best to uninstall the OPENJDK before installing Sun's JDK.View Firs

Fedora 20 comes with openjdk, so if you install the official JDK, remove OPENJDK first, as follows:1:rpm-qa|grep jdk to view the current JDK situation.2:yum-y Remove Java java-1.7.0-openjdk* Uninstall OPENJDK, a process in which some additional software may be uninstalled for reasons of dependency.3: Go to Oracle websi