Java tutorial
public class Main { public static void main(String[] a) { Package p = Package.getPackage("java.lang"); System.out.println("Name = " + p.getName()); System.out.println("Implementation title = " + p.getImplementationTitle()); System.out.println("Implementation vendor = " + p.getImplementationVendor()); System.out.println("Implementation version = " + p.getImplementationVersion()); } } /*Name = java.lang Implementation title = Java Runtime Environment Implementation vendor = Sun Microsystems, Inc. Implementation version = 1.6.0_02 */