1) download JDK + netbeans from here:
http://www.oracle.com/technetwork/java/javase/downloads/jdk-7-netbeans-download-432126.html
You would download a file named such as: jdk-7u25-nb-7_3_1-linux-i586.sh
2) We need to give execute permissions to the downloaded file:
command: chmod +x jdk-7u25-nb-7_3_1-linux-i586.sh
3) start installer:
command: ./jdk-7u25-nb-7_3_1-linux-i586.sh
