info: How to install java on Ubuntu.

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JAVAJava is a object-oriented computer programming language developed by James Gosling  at Sun Microsystems and released in 1995 lated it has been migrated to

Oracle systems. The code that can runs on one platform does not need to be recompiled.

Ubuntu

Install oracle java 7 in ubuntu 12.04
Here I have described about one of the easiest installation method of Oracle-JAVA on Ubuntu using JAVA repository. for more information : http://en.wikipedia.org/wiki/Java_(programming_language)

Open the terminal and run the following commands

# java -version
java version "1.6.0_24"
OpenJDK Runtime Environment (IcedTea6 1.11.5) (6b24-1.11.5-0ubuntu1~12.04.1)
OpenJDK Server VM (build 20.0-b12, mixed mode)

# sudo add-apt-repository ppa:webupd8team/java
# sudo apt-get update
# sudo apt-get install oracle-java7-installer

Now check the new updated verison

# java -version
java version "1.7.0_21"
Java(TM) SE Runtime Environment (build 1.7.0_21-b11)
Java HotSpot(TM) Server VM (build 23.21-b01, mixed mode)

 

sdf

Check the installation directory:

anand@desktop:~$ ll /usr/lib/jvm/java-7-oracle/
total 19720
drwxr-xr-x 8 root root 4096 May 3 09:32 .
drwxr-xr-x 6 root root 4096 May 3 09:32 ..
drwxr-xr-x 2 root root 4096 May 3 09:32 bin
-r--r--r-- 1 root root 3339 May 3 09:32 COPYRIGHT
drwxr-xr-x 4 root root 4096 May 3 09:32 db
drwxr-xr-x 3 root root 4096 May 3 09:32 include
drwxr-xr-x 5 root root 4096 May 3 09:32 jre
drwxr-xr-x 3 root root 4096 May 3 09:32 lib
-r--r--r-- 1 root root 40 May 3 09:32 LICENSE
drwxr-xr-x 4 root root 4096 May 3 09:32 man
-r--r--r-- 1 root root 114 May 3 09:32 README.html
-rw-r--r-- 1 root root 443 May 3 09:32 release
-rw-r--r-- 1 root root 19838528 May 3 09:32 src.zip
-rw-r--r-- 1 root root 123324 May 3 09:32 THIRDPARTYLICENSEREADME-JAVAFX.txt
-r--r--r-- 1 root root 172252 May 3 09:32 THIRDPARTYLICENSEREADME.txt

 

That’s all 🙂

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