import java.util.Properties;
import java.util.Set;
public class StstemDemos {
public static void main(String[] args)
{
method1();
}
private static void method1()
{
// 获取系统的属性信息
Properties pro = System.getProperties();
Set<String> setname = pro.stringPropertyNames();
for(String name:setname)
{
String value = pro.getProperty(name);
System.out.println(name +" : "+ value);
}
}
private static void methd()
{
// 获取当前时间的毫秒值
long l = System.currentTimeMillis();
System.out.println(l);
}
}
运行程序: