印出目前的靜態系統參數
import java.util.Properties;
import java.util.Enumeration;
public class testSystemProp{
public static void main(String args[]){
Properties props = System.getProperties();
Enumeration enum = props.propertyNames();
for (; enum.hasMoreElements(); ) {
String propName = (String)enum.nextElement();
String propValue = (String)props.get(propName);
System.out.println(propName + ":\t" + propValue);
}
}
}
