java detect machine architecture linux

java detect machine architecture linux

As I am writing some installer code,I was required to detect machine architecture before proceeding.

I tried to detect machine architecture (32 / 64 Bit) from Java.

From these links, I got two code.

http://stackoverflow.com/questions/1856565/how-do-you-determine-32-or-64-bit-architecture-of-windows-using-java

https://community.oracle.com/thread/2061806

System.getProperty("os.arch")

&

System.getProperty("sun.arch.data.model")

I am running 64 Bit, Centos system and in my system,

System.getProperty("os.arch") , showed as  amd64
&
System.getProperty("sun.arch.data.model"), showed as 64