Call a method after the constructor has ended

Question

I need to call a method after the constructor has ended and I have no idea how to do. I have this class:

Class A {
    public A() {
        //...
    }

             


        

Answer 1

I pick up some ideas and provide an abstractable solution:

class A {
    protected A() {
        // ...
    }
    protected void init() {
        // ...
    }
    public static  T create(Class type) {
        try {
            T obj = type.newInstance();
            obj.init();
            return obj;
        } catch (ReflectiveOperationException ex) {
            System.err.println("No default constructor available.");
            assert false;
            return null;
        }
    }
}