- Available, Free and Maximum memory
- Processors
- File System ( Number of Drives )
import java.io.File;
public class GetSystemInfo {
/**
* @param args
*/
public static void main(String[] args) {
/* 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());
/* Get a list of all filesystem roots on this system */
File[] roots = File.listRoots();
/* For each filesystem root, print some info */
for (File root : roots) {
System.out.println("File system root: " + root.getAbsolutePath());
}
}
}
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