First you need to add Sigar.jarto your library, and then add the file .soto your library (you need to select the file for your OS that you use). These files can be found at "hyperic-sigar-1.6.4/sigar-bin/lib". You can find the use of the function Memin the code example:
import java.io.*;
import java.util.*;
import java.text.*;
import java.lang.*;
import org.hyperic.sigar.Mem;
import org.hyperic.sigar.Sigar;
import org.hyperic.sigar.SigarException;
public class MemExample {
private static Sigar sigar = new Sigar();
public static void getInformationsAboutMemory() {
System.out.println("**************************************");
System.out.println("*** Informations about the Memory: ***");
System.out.println("**************************************\n");
Mem mem = null;
try {
mem = sigar.getMem();
} catch (SigarException se) {
se.printStackTrace();
}
System.out.println("Actual total free system memory: "
+ mem.getActualFree() / 1024 / 1024+ " MB");
System.out.println("Actual total used system memory: "
+ mem.getActualUsed() / 1024 / 1024 + " MB");
System.out.println("Total free system memory ......: " + mem.getFree()
/ 1024 / 1024+ " MB");
System.out.println("System Random Access Memory....: " + mem.getRam()
+ " MB");
System.out.println("Total system memory............: " + mem.getTotal()
/ 1024 / 1024+ " MB");
System.out.println("Total used system memory.......: " + mem.getUsed()
/ 1024 / 1024+ " MB");
System.out.println("\n**************************************\n");
}
public static void main(String[] args) throws Exception{
getInformationsAboutMemory();
}
}