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to the logon page and enter your username and password registered on the Oracle website. Step 3: Install Oracle JDK(1) create a java directory$ Sudo mkdir-p/usr/local/javaCopy the jdk-6u45-linux-x64.bin you downloaded to the/usr/local/java directory$ Cd/usr/local/java$ Sudo cp/home/bkjia/Downloads/jdk-6u45-linux-x64.bin. (2) decompress the binfile$ Sudo chmod + x jdk-6u45-linux-x64.bin$ Sudo./jdk-6u45-linux-x64.bin$ Sudo rm-rf jdk-6u45-linux-x64.bin Step 4: configure the JDK(1) Configure JAVA_H

-dev:i386 3. downgrade the gcc/g ++ version (the default gcc/g ++ version of Ubuntu is a little high) # sudo apt-get install gcc-4.4 # sudo apt-get install g++-4.4 #sudo update-alternatives –install /usr/bin/gcc gcc /usr/bin/gcc-4.4 40 #sudo update-alternatives –install /usr/bin/g++ g++ /usr/bin/g++-4.4 40 #sudo update-alternatives –install /usr/bin/gcc gcc /usr/

Install Oracle JDK 14.04 on Ubuntu 1.8 LTS (1) download JDK Http://www.oracle.com/technetwork/cn/java/javase/downloads/index.html (2) Extract (3) create a jvm File (4) Move to/usr/lib/jvm (Note: If there is no jvm file, running this statement will automatically create the jvm file, but it will only put all the files in jdk1.8.0 _ 25 into the jvm, instead of placing the jdk1.8.0 _ 25 and its files in the jvm file, the two are different) (5) set JDK Environment Variables (Also in ~ /. Bashrc

you have not logged on, the system will go to the logon page and enter your username and password registered on the Oracle website.Step 3: Install Oracle JDK(1) create the java directory $ sudo mkdir-p/usr/local/java copy the jdk-6u45-linux-x64.bin you downloaded to the/usr/local/java directory $ cd/usr/local/java $ sudo cp/ home/dennis/Downloads/jdk-6u45-linux-x64.bin.(2) unzip the binfile $ sudo chmod + x jdk-6u45-linux-x64.bin $ sudo./jdk-6u45-linux-x64.bin $ sudo rm-rf jdk-6u45-linux-x64.bi

Step 1: Download the JDK of tar.gz, Run the sudo tar zxvf./jdk's name.tar.gz-C and the path you want to specify. Step 2: Modify JDK Permissions Sudo chmod 766-r your JDK path Step 3: Press CTRL + ALT + T to open the terminal Step 4: Enter sudo gedit/etc/profile, the system will pop up the profile text file, and add the following code at the end # Set Java environmentExport java_home = Your JDK pathExport jre_home =$ {java_home}/JREExport classpath =. :$ {java_home}/lib: 4 {jre_home}/libExport pa

1. Check the version and installed version Dev03 @ dev03 :~ $ Ls/usr/bin/GCC * /Usr/bin/GCC/usr/bin/gcc-4.5/usr/bin/gcc-4.6 If some versions are missing, install them directly: Sudo apt-Get install gcc-4.5 g ++-4.5 Sudo apt-Get install gcc-4.4 g ++-4.4 2. view the G ++ GCC version. G ++-V gcc-V 3. When the environment requires a specific version of GCC g ++, select sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.5 40sudo update

CC and GCC in Linux Zhou yinhui In Linux, CC will be seen later, and GCC will be seen later, which is a bit messy. Are they the same thing? What is the difference? In two parts: First, if the scope of discussion is between UNIX and Linux, Then CC and GCC are not the same thing. CC from UNIXC LanguageCompiler, short for C compiler. GCC comes from the Linux world and is short for GNU Compiler Collection. Note that this is a set of compilers, not just C or C ++. Secondly, if t

Install JDK 1.6 in Ubuntu and set it as the default JDK. download the Liunx JDK in Windows, and I will download the jdk-6u43-linux-i586.bin2. upload JDK to Ubuntu3. manually install JDK through secureCRT (I installed JDK under/usr/local/bin/jdk1.6.0 _ 43): repair first... install JDK 1.6 in Ubuntu and set it to the default JDK 1. download the Liunx JDK in Windows, my jdk-6u43-linux-i586.bin2. upload JDK to Ubuntu3. manually install JDK through secureCRT (I installed under/usr/local/bin/jdk1.6.0

source/etc/profile for one time) Javac java = version confirmation // This setting applies to a single user Cd/home/{user's home directory} Vim. bashrc Add the following statement at the end of the bashrc file: Export JAVA_HOME =/usr/local/{jdk path} Export JRE_HOME =/usr/local/{jdk path}/jre Export PATH = $ JAVA_HOME/bin: $ JAVA_HOME/jre/bin: $ PATH Export CLASSPATH =.: $ JAVA_HOME/lib/tools. jar: $ JAVA_HOME/lib/dt. jar 2. install myeclipse Download the run file of myeclise for linux from the

1, first uninstall the server's own JDK package# java-version #查看服务器是否安装过jdkJava Version "1.6.0_17"OpenJDK Runtime Environment (IcedTea6 1.7.4) (rhel-1.21.b17.el6-i386)OpenJDK Client VM (build 14.0-b16, Mixed mode)# Rpm-qa |grep gcj #查看服务器安装的jdk软件包信息libgcj-4.4.4-13.el6.i686java-1.5.0-gcj-1.5.0.0-29.1.el6.i686# rpm-e java-1.5.0-gcj-1.5.0.0-29.1.el6.i686 #卸载软件包2, to the Sun's official website downloadHttp://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.htmlSelect Accept L

After centos is installed, openjdk is used by default. We found that the image of the app verification code we developed is displayed incorrectly. We checked that the image interface is different from that of Sun JDK, we usually use Sun JDK for development in windows. Therefore, we must replace Sun JDK. Generally, we may need to delete open JDK. I checked it online and found a new method, use alternatives to convert the Java version. The specific meth

-0.b14.el6_7.x86_64/jre/lib/amd64/libjsoundalsa.so/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.91-0.b14.el6_7.x86_64/jre/lib/amd64/libsplashscreen.so/usr/share/applications/java-1.8.0-openjdk-1.8.0.91-0.b14.el6_7.x86_64-policytool.desktop/usr/share/icons/hicolor/16x16/apps/java-1.8.0.png/usr/share/icons/hicolor/24x24/apps/java-1.8.0.png/usr/share/icons/hicolor/32x32/apps/java-1.8.0.png/usr/share/icons/hicolor/48x48/apps/java-1.8.0.png$ CD/USR/LIB/JVM$ llTotal Dosage 4lrwxrwxrwx. 1 root root 5 Month 16:

Ubuntu uses gcc of different versionsDifferent Versions of ubuntu have different gcc, such as ubuntu 10.04 default gcc version is gcc-4.4.1, ubuntu 10.10gcc default version is gcc-4.4.5.However, in actual use, we want to use other gcc compilers because of cross-compilation or other specific requirements. For example, if I want to use gcc-4.3 in ubuntu 10.10, what should I do?First open the new software manager, enter gcc in it, find the gcc-4.3 and g ++-4.3, and then select: Enter the following

Ubuntu14.04 install JDK and ubuntu14.04jdk Download from Sun's official website Http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html Select accept license, and then select JDK download suitable for your model. Decompress the file and modify the file name. sudo mkdir /usr/lib/jvmsudo tar zxvf jdk-8u11-linux-i586.tar.gz -C /usr/lib/jvmcd /usr/lib/jvmsudomv jdk1.8.0_11 java Add Environment Variables sudo vim ~/.bashrc Add the following content export JAVA_HOME=/usr/li

original link: http://blog.csdn.net/yuxiangyunei/article/details/45365235Environment:Ubuntu:ubuntu-15.04-desktop-amd64vmware:vmware-workstation-full-11.1.0-2496824,1f04z-6d111-7z029-av0q4-3aeh8android:andro Id-5.1.0_r3One, Initializing a Build environmentOpen Terminal to enter the following command, open by: Ctrl+alt+tYou can also open the terminal by right-clicking the desktop. 1.Installing the JDK $ sudo apt-get update $ sudo apt-get install OPENJDK-7-JDKThe following has not been

}/lib:${ jre_home}/ 4. Configuring the default JDK version sudo update-alternatives--Install/usr/bin/java Java/usr/lib/jvm/java/bin/java300sudo update-alternatives--install/usr/bin/javac javac/usr/lib/jvm/java/bin/javac 300 sudo update-alternatives--install/usr/bin/jar jar/usr/lib/jvm/java/bin/jar 300 Span style= "color: #0000FF; line-height:1.5!important;" >s

want to install myeclipse, this step is required; otherwise, an error will occur ): sudo update-alternatives -- install "/usr/bin/java" "java" "/usr/jdk1.7.0 _ 09/bin/java" 300Sudo update-alternatives -- install "/usr/bin/javac" "javac" "/usr/jdk1.7.0 _ 09/bin/javac" 300Sudo update-alternatives -- install "/usr/bin/javaws" "javaws" "/usr/jdk1.7.0 _ 09/bin/javaws

Finally, the complete implementation of C ++ 11 GCC 4.8.1. Upgrade your system. The following steps can be performed to install GCC 4.8.1 in Ubuntu 13.04, Sudo add-apt-repository ppa: ubuntu-toolchain-r/testSudo update-alternatives -- remove-all gccSudo update-alternatives -- remove-all g ++Sudo apt-get install gcc-4.8Sudo apt-get install g ++-4.8Sudo update-alternative