java.lang.Class.getDeclaredConstructor()

package com.codingdict;



import java.lang.reflect.*;



public class ClassDemo {



   public static void main(String[] args) {



      try {

         ClassDemo cls = new ClassDemo();

         Class c = cls.getClass();



         // constructor with arguments as Double and Long

         Class[] cArg = new Class[2];

         cArg[0] = Double.class;

         cArg[1] = Long.class;

         Constructor ct = c.getDeclaredConstructor(cArg);

         System.out.println("Constructor = " + ct.toString());

      } catch(NoSuchMethodException e) {

         System.out.println(e.toString());

      } catch(SecurityException e) {

         System.out.println(e.toString());

      }

   }



   private ClassDemo() {

      System.out.println("no argument constructor");

   }



   public ClassDemo(Double d, Long l) {

      this.d = d;

      this.l = l;

   }



   Double d = new Double(3.9d);

   Long l = new Long(7687);

}