
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( ) ); //打印总内存大小和空闲内存大小
    }
}



中级程序员
by: 中国人在美国 发表于:2013-07-31 05:13:10 顶(0) | 踩(0) 回复
不知道这个用法,顶一个
回复评论