Getting OS memory size from java

Question

Are there any way to get the size of the total memory on the operating system from java? Using

Runtime.getRuntime().maxMemory()

returns the

Answer 1

that is not possible with pure Java, your program runs on java virtual machine, and therefore it is isolated from OS. I suggest 2 solutions for this:

1) You can use a JNI and call a C++ function to do that
2) Another option is to use Runtime.exec(). Then you have to get the info from "cat /proc/meminfo"