// Property.java import java.util.*; public class Property { public static void main(String[] args) { System.out.println(new Date()); Properties p = System.getProperties(); p.list(System.out); System.out.println("--- Memory Usage:"); Runtime rt = Runtime.getRuntime(); System.out.println("Total Memory = " + rt.totalMemory() + " Free Memory = " + rt.freeMemory()); } }
% java Property Wed May 22 03:37:20 JST 2002 -- listing properties -- java.runtime.name= Java(TM) 2 Runtime Environment, Stand... sun.boot.library.path=C:\cygwin\java\jdk1.4\jre\bin java.vm.version=1.4.0-b92 java.vm.vendor=Sun Microsystems Inc. java.vendor.url=http://java.sun.com/ .... java.vendor.url.bug= http://java.sun.com/cgi-bin/bugreport... sun.cpu.endian=little sun.io.unicode.encoding=UnicodeLittle sun.cpu.isalist=pentium i486 i386 --- Memory Usage: Total Memory = 2031616 Free Memory = 1555104というような表示がなされる.