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

You can use Class.forName() to get a Class object of the desired class.

Then use getConstructor() to find the desired Constructor object.

Finally, call newInstance() on that object to get your new instance.

Class c = Class.forName("mypackage.MyClass");
Constructor cons = c.getConstructor(String.class);
Object object = cons.newInstance("MyAttributeValue");