How to remove JDK in Ubuntu Linux

Java SE 7 Update 13 released, so I have to remove old jdk and install the updated version.

To remove jdk using update-alternatives, open Terminal and type the commands:

sudo update-alternatives --remove "javac" "/home/you/jdk1.7.0_11/bin/javac"
sudo update-alternatives --remove "java" "/home/you/jdk1.7.0_11/bin/java"

remove JDK in Ubuntu Linux

After remove the old jdk, you can remove the old jdk from your hardisk, and re-install the new JDK 7 and update-alternatives.

Install Netbeans IDE 7.2 on release version Windows 8

TO download Netbeans, visit http://netbeans.org/, click the Download button.

Scroll download the select the download option. Java SE in my case.

Run the download file, netbeans-7.2.1-ml-javase-windows.exe.

Click Next to start installation.

Accept the terms in the license agreement, and click Next.

Accept the terms t install JUnit, and click Next.

Select the location to install. The installer will search te installed JDK if exist. Next.

Review all the setting, and click Install.

Finish.

Install JDK 7 on Windows 8 (Official version)

In this post, I describe how to download and install JDK 7 (Java SE 7u11 currently) on official Windows 8 (not Preview version).

Note: You must have administrative permissions in order to install the JDK on Microsoft Windows.
Note: Installers for JDK 7u6 and later install the JavaFX SDK and integrate it into the JDK installation directory.

Visit http://www.oracle.com/technetwork/java/javase/downloads/index.html, click the download Java Platform button.

Scroll down to check Accept License Agreement, select Java SE Development Kit 7u11, jdk-7u11-windows-i586.exe for Windows x86.

Run the downloaded installer.

Select optional features and location to install.

Select location to install jre.

Completed.

Next:
- Set PATH environment variable to JDK on Official Windows 8