Install java in ubuntu

Hi
I have Ubuntu installed on my PC. I am trying to install java on ubuntu but I can't get it right. So, how to install java on ubuntu. Please explain in details as I an new to Ubuntu.

Below described is one of the way to install java in ubuntu.
Follow these steps

1) Type the command to get the latest version of java

Code:

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apt-cache search jdk

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2) Install Java jdk and jre with apt-get install command

Code:

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apt-get install sun-java6-jdk sun-java6-jre

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3) Ubuntu will auto detect the necessary files and you will see the following on your monitor screen:

Quote:

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Do you want to continue [Y/n]? y
Get:1 http://my.archive.ubuntu.com hardy/main java-common 0.28ubuntu3 [78.2kB]
Get:2 http://my.archive.ubuntu.com hardy/multiverse sun-java6-jre 6-06-0ubuntu1 [6334kB]
Get:3 http://my.archive.ubuntu.com hardy/main odbcinst1debian1 2.2.11-16build1 [66.2kB]
Get:4 http://my.archive.ubuntu.com hardy/main unixodbc 2.2.11-16build1 [289kB]
Get:5 http://my.archive.ubuntu.com hardy/multiverse sun-java6-bin 6-06-0ubuntu1 [27.3MB]
Get:6 http://my.archive.ubuntu.com hardy/multiverse sun-java6-jdk 6-06-0ubuntu1 [9625kB]
85% [6 sun-java6-jdk 3208002/9625kB 33%]

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4) After installation is completed jdk and jre will be located at /usr/lib/jvm/java-6-sun-1.6.0.06
5) For a shortcut access ubuntu creates a symbolic link to /usr/bin

You can also download Java Binary Package and install it. First download the java .bin file for internet, it is easily available. After downloading is completed copy the file to /opt and issue the following command

Quote:

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sudo sh ./jre-6u1-linux-i586-rpm.bin
sudo update-alternatives --config java
(And pick the one you just installed as your default version.)
java -version

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If any problem feel free to post again.