To install Netbeans IDE on ubuntu 15.10
NOTE: JDK 7, JDK 8 or later versions are required for installing and running the Java SE, Java EE and All NetBeans 8.1 Bundles.
To install JDK 8 on ubuntu click here
1.Go to Netbeans download page and download the netbeans Linux (x86/x64) .sh installer file (here its netbeans-8.1-linux.sh).
2.Copy your Netbeans installer file to your Desktop.
3.Open Terminal.To open terminal click the Dash home from unity launcher.And type terminal in the search field.And click Terminal.
4.Type the below code in terminal and hit enter.
5.Then type below code in terminal and hit enter
sudo chmod +x netbeans-*
Type your ubuntu password if needed and press enter.
6.Then type below code and press enter
7.And then install Netbeans with the default settings from GUI installer window.
After the successful installation,click the Dash home from unity launcher.And type netbeans in the search field.And click Netbeans IDE to open