Question

I have an app in which all classes contain a String track. And all these classes call a class Track. How can I get the value of track from class Track? I expect something like

public Class Track{
getClass().trackorwhatever().get(this)
}

Answer 1

In your Track class, make a method which returns the value of track:

public String getTrack()
{
 return track;
}

Have you declared an instance of class Track in your other classes?
If you have you can do something like this:

Track tr = new Track()
String track;
track = tr.getTrack();