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import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.UnknownHostException;
public class Test {
public static void main(String[] args) {
InetAddress ip;
try {
ip = InetAddress.getLocalHost();
System.out.println("Current host name : " + ip.getHostName());
System.out.println("Current IP address : " + ip.getHostAddress());
String nameOS = System.getProperty("os.name");
System.out.println("Operating system Name=>" + nameOS);
String osType = System.getProperty("os.arch");
System.out.println("Operating system type =>" + osType);
String osVersion = System.getProperty("os.version");
System.out.println("Operating system version =>" + osVersion);
System.out.println(System.getenv("PROCESSOR_IDENTIFIER"));
System.out.println(System.getenv("PROCESSOR_ARCHITECTURE"));
System.out.println(System.getenv("PROCESSOR_ARCHITEW6432"));
System.out.println(System.getenv("NUMBER_OF_PROCESSORS"));
/* Total number of processors or cores available to the JVM */
System.out.println("Available processors (cores): " + Runtime.getRuntime().availableProcessors());
/* Total amount of free memory available to the JVM */
System.out.println("Free memory (bytes): " + Runtime.getRuntime().freeMemory());
/* This will return Long.MAX_VALUE if there is no preset limit */
long maxMemory = Runtime.getRuntime().maxMemory();
/* Maximum amount of memory the JVM will attempt to use */
System.out.println("Maximum memory (bytes): " + (maxMemory == Long.MAX_VALUE ? "no limit" : maxMemory));
/* Total memory currently in use by the JVM */
System.out.println("Total memory (bytes): " + Runtime.getRuntime().totalMemory());
NetworkInterface network = NetworkInterface.getByInetAddress(ip);
byte[] mac = network.getHardwareAddress();
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