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Download:Http://java.sun.com/javase/downloadsSelect Linux 64-bit. tar.gz fileUnzip, move:Tar-xzvf/root/jdk-7u45-linux-x64.tar.gzMV Jdk1.7.0_45/optCd/opt/jdk1.7.0_4Registered:Update-alternatives--install/usr/bin/java Java/opt/jdk1.7.0_45/bin/java 1Update-alternatives--install/usr/bin/javac Javac/opt/jdk1.7.0_45/bin/javac 1Update-alternatives--install/usr/lib/mozil

Several recent projects are written with c++11, the more you feel strong, a lot of new features also hope that Java can be integrated into it. Plan to have time to write a c++11 of the use of the experience, but C + + is too profound, there are several great features have not mastered. Now try to use c++11 on native Ubuntu, find several methods, think the following method is the quickest.First, in order to use the C++11,GCC version must be above 4.7. Of course, if you do not use all the features

to edit ~/.bashrc the file, using VI, Gedit or VIM. Copy the following to the end of the file.export JAVA_HOME=/usr/lib/java/jdk1.8.0_45export JRE_HOME=${JAVA_HOME}/jreexport CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/libexport PATH=${JAVA_HOME}/bin:$PATHAfter saving, return to terminal, source a bit:source ~/.bashrcThe following may or may not be performed.To configure the default JDK version:Because Ubuntu has a default JDK version built in, we can replace the original OPENJDK after we configur

Installation in the ubuntu10.10 system, the development environment needs, sometimes need to install JDK5 and JDK6, how to achieve the switch between the two? Use the Update-alternativs command to complete this taskSpecific as follows:1. Check to see if the JDK is in the Ubuntu JDK menu:Java code Update-alternatives--config Java Update-alternatives--config Javac 2. If not in the menu can b

1. Download to Oracle's websiteHttp://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.htmlSelect Accept License and select the JDK download that fits your model.2, unzip the file, modify the filename$ sudo mkdir/usr/lib/jvm$ sudo tar zxvf jdk-8u51-linux-x64.tar.gz-c/usr/lib/jvm$ cd/usr/lib/jvm$ sudo mv jdk1.8.0_51 j Ava3. Add Environment variables$ sudo gedit ~/.BASHRCAdd the following:Export Java_home=/usr/lib/jvm/java export JRE_HOME=${JAVA_HOME}/JRE export classpath=.

installation of Ubuntu, first install make sudo apt-get install make Download source sudo wget https://downloads.php.net/~ab/php-7.0.2RC1.tar.gz sudo tar-zvxf php-7.0.2rc1.tar.gz CD Php-7.0.2rc1 According to Brother Bird, install gcc4.8 With a new compiler, GCC is recommended for more than 4.8 because only gcc 4.8 or more PHP will open the global Register for Oplineand Execute_data support, this will bring about 5% performance promotion (Wordpres QPS angle measure) actually GCC4.8 Previous

-downloads-javase6-419409.html, select Java SE development Kit 6u45, and then click Accept on the newly opened pageAccept License Agreement". Once accepted, select "Jdk-6u45-linux-x64.bin" to download. If you are not logged in, the system will first go to the login page and enter the username and password you registered with the Oracle website.Step three: Install Oracle JDK(1) Create Java directory $ sudo mkdir-p/usr/local/java copy your downloaded Jdk-6u45-linux-x64.bin to/usr/local/java direct

/downloads/ java-archive-downloads-javase6-419409.html, select Java SE development Kit 6u45, and then click Accept on the newly opened pageAccept License Agreement". After acceptance. Select "Jdk-6u45-linux-x64.bin" to download. Assuming you are not logged in, the system will first go to the login page and enter your username and password on the Oracle site. Step three: Install Oracle JDK(1) Create Java folder $ sudo mkdir-p/usr/local/java copy your downloaded Jdk-6u45-linux-x64.bin to/usr/local

1. Go to Oracle official website: http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html Download JDK version, such as: jdk-8u171-linux-x64.tar.gz2. Sudo tar-zxf jdk-8u171-linux-x64.tar.gz/usr/local, unzip the JDK into/usr/local3. Set environment variables to add the following environment variables in. ZSHRC (zsh) or/etc/profile (bash):Export java_home=/usr/local/jdk1.8.0_171Export Jre_home= $JAVA _home/jreExport classpath=.: $JAVA _home/lib: $JRE _home/libExport pat

there is openjdk, so, in order to make the default use of the JDK we installed, but also to do the following work.Perform:sudo update-alternatives--install/usr/bin/java Java ~/abc/jdk1.6.0_45/bin/java 300sudo update-alternatives--install/usr/bin/javac javac ~/abc/jdk1.6.0_45/bin/javac 300This step adds our installed JDK to the Java menu.Then execute:sudo update-alterna