Question: I am wondering if GWT supports types conversion? I know that the Vaadin have such support. I mean something like Vaadin StringToIntegerConverter and all this stuff mentioned here: <https://vaadin.com/docs/-/part/framework/datamodel/datamodel-properties.html> 

I am totally new in GWT, but I haven't found even a word about this issue in framework documentation. Did I miss something?

Answer: 
Though Vaadin converters you're referring to serve the specific purpose of binding models to presenters, if you're looking for a way to, for example, initialize an integer from a string, GWT [emulates](http://www.gwtproject.org/doc/latest/RefJreEmulation.html) classes wrapping java primitives (Integer, Double, etc.). Methods of these classes allow you to do, e.g., this:

```
int myInt = new Integer(myString).intValue();

```
GWT has a [JRE Emulation](http://www.gwtproject.org/doc/latest/RefJreEmulation.html) and provide a lot of Classes and methods.

You can call `Integer.valueOf("666")` to get a `666`