Creating an instance using the class name and calling constructor

Question

Is there a way to create an instance of a particular class given the class name (dynamic) and pass parameters to its constructor.

Something like:

Obj         


        

Answer 1

If anyone is looking for a way to create an instance of a class despite the class following the Singleton Pattern, here is a way to do it.

// Get Class instance
Class clazz = Class.forName("myPackage.MyClass");

// Get the private constructor.
Constructor cons = clazz.getDeclaredConstructor();

// Since it is private, make it accessible.
cons.setAccessible(true);

// Create new object. 
Object obj = cons.newInstance();

This only works for classes that implement singleton pattern using a private constructor.