反照创建对象报错

反射创建对象报错

Java code

package cn.pb.constructor;import java.lang.reflect.Constructor;import java.lang.reflect.InvocationTargetException;import java.util.Calendar;public class Main {    public static void main(String[] args) throws SecurityException, NoSuchMethodException, IllegalArgumentException, InstantiationException, IllegalAccessException, InvocationTargetException {        Class cla=Calendar.class;        Calendar cal=(Calendar) cla.newInstance();        System.out.println(cal.toString());    }}