Java tutorial
import java.lang.reflect.Constructor; public class Main { public static void main(String[] args) throws Exception { Class clazz = String.class; Constructor[] constructors = clazz.getDeclaredConstructors(); for (Constructor constructor : constructors) { String name = constructor.getName(); System.out.println("Constructor name= " + name); Class[] paramterTypes = constructor.getParameterTypes(); for (Class c : paramterTypes) { System.out.println("Param type name = " + c.getName()); } } Constructor constructor = String.class.getConstructor(new Class[] { String.class }); System.out.println("Constructor = " + constructor.getName()); } }