Ubuntu14.04 install JDK and ubuntu14.04jdk

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/jvmsudo mv jdk1.8.0_11 java

 

Add Environment Variables

sudo vim ~/.bashrc

 

Add the following content

export JAVA_HOME=/usr/lib/jvm/java export JRE_HOME=${JAVA_HOME}/jre  export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib  export PATH=${JAVA_HOME}/bin:$PATH  

Configure the default JDK version

sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/java/bin/java 300  sudo 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   sudo update-alternatives --install /usr/bin/javah javah /usr/lib/jvm/java/bin/javah 300   sudo update-alternatives --install /usr/bin/javap javap /usr/lib/jvm/java/bin/javap 300 

 

Then execute

sudo update-alternatives --config java

This is the first time JDK is installed.

There is only one alternative in link group java (providing/usr/bin/java):/usr/lib/jvm/java/bin/java requires no configuration.

If it is not the first installation, JDK options of different versions will be available.

Test

java -version

I am the dividing line of tiantiao

 

 

Reference: http://www.cnblogs.com/plinx/archive/2013/06/01/3113106.html

 

Ubuntu1404lts installation jdk-8u11-linux-i586targz problem !!

-Does the path after C exist? Write so much .. why, just absolute path/usr/lib/jvm.

How to install jdk in ubuntu 1204

Search for OpenJDK installation in the Software Center.
If you want to install the official JDK, you can download and install it on the official website. I personally think OpenJDK can fully meet your needs.