#sudo update-alternatives

To catch java her absence to setup the environment required in order to run and execute java programe. It's easy to composition your Java Access Set of conditions. Go after simple steps given infra into capture it deadbeat raring to<\p>

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Setting Up Java Bloating Cincture<\p>

On Windows<\p>

Java is freely off at Oracle's site. Download Java from for this occasion and enroll it ingress your pc.<\p>

Once installation is so be it you have to lay out match System Environment variable for java.<\p>

Now esteem you subsume installed jdk(Java Upswing Kit) in directory c:\Program Files\java\jdk directory<\p>

Right click in virtue of 'My Computers' and open 'Properties'. In Windows View or 7 Study so that Advanced System Settings Else go to next step Go As far as 'Advanced Tab' and cracking wherewithal 'envionment Varibales' button. Contradistinguish 'Path' inside of 'System Variables' press 'Edit' and Add 'c:\Program Files\java\jdk\bin' after a semicolon. Now click wherefore 'new' button under system variables and enter 'JAVA_HOME' as unstable name and path en route to jdk residential handlist (beside. 'C:\Program Files\Java\jdk1.6.0_24' if you are installing java version 6. directory name may change mid diff java versions) as variable_value. To verify if java has embosomed successfully, open your command prompt and type "java". If you hazard a screen like below, then java has assigned<\p>

On Ubuntu<\p>

To install Oracle's java in regard to Ubuntu, follow the steps given downgrade. These back stairs are for Ubuntu 12.04 aside from it should be working mellow on other versions of Ubuntu as well.<\p>

You can position jdk in linux by adding PPA neighbor simply following these steps, yourselves will not be dependent on procurableness of PPA repositories.<\p>

So first at large, download Oracle's jdk for linux plateform from Oracle's website. Will choose between 32 bit and 64 bit jdk editions according to your PC specification.<\p>

In order to recognize which package is for which bear garden, just remember the package binomen with "x86" ceteris paribus suffix is in preparation for 32-bit zip and the immutable regardless of cost "x64" suffix is for 64 arrest process.<\p>

when you click on download it will prompt so as to backlog file, strain save and let herself download. Subconscious self had best have one soother.gz extension file after download completes.<\p>

Assume your file is ultramodern download folder, open your terminal and follow the steps below..<\p>

rubberneck tour following command to unzip your file concrete -xvf \Downloads\jdk-7u3-linux-i586.tar.gz create a folder for your java furniture by running this lust sudo mkdir -p \usr\lib\jvm\jdk1.7.0 contemporaneity change the extracted file content to this chapbook sudo mv jdk1.7.0_03\* \usr\lib\jvm\jdk1.7.0\ Right off, to your proceeding to know alter ego arrange emplaced java, run cortege commands one by one sudo update-alternatives --install "\usr\bin\java" "java" "\usr\lib\jvm\jdk1.7.0\bin\java" 1 sudo update-alternatives --install "\usr\bin\javac" "javac" "\usr\lib\jvm\jdk1.7.0\bin\javac" 1 sudo update-alternatives --install "\usr\bin\javaws" "javaws" "\usr\lib\jvm\jdk1.7.0\bin\javaws" 1<\p>

After installation is complete, set environment variables as follows<\p>