Creating an instance from String in Java

Question

If I have 2 classes, \"A\" and \"B\", how can I create a generic factory so I will only need to pass the class name as a string to receive an instance?

Example:

Answer 1

Class c= Class.forName(className);
return c.newInstance();//assuming you aren't worried about constructor .

• javadoc

For invoking constructor with argument

 public static Object createObject(Constructor constructor,
      Object[] arguments) {

    System.out.println("Constructor: " + constructor.toString());
    Object object = null;

    try {
      object = constructor.newInstance(arguments);
      System.out.println("Object: " + object.toString());
      return object;
    } catch (InstantiationException e) {
      //handle it
    } catch (IllegalAccessException e) {
      //handle it
    } catch (IllegalArgumentException e) {
      //handle it
    } catch (InvocationTargetException e) {
      //handle it
    }
    return object;
  }
}

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