package generics;

import java.util.*;

/**

* RUN:

* javac generics/LostInformation.java && java generics.LostInformation

* OUTPUT:

* [E]

* [K, V]

* [Q]

* [POSITION, MOMENTUM]

*/

public class LostInformation {

public static void main(String[] args) {

List<Frob> list = new ArrayList<Frob>();

Map<Frob,Fnorkle> map = new HashMap<Frob,Fnorkle>();

Quark<Fnorkle> quark = new Quark<Fnorkle>();

Particle<Long,Double> p = new Particle<Long,Double>();

System.out.println(Arrays.toString(list.getClass().getTypeParameters()));

System.out.println(Arrays.toString(map.getClass().getTypeParameters()));

System.out.println(Arrays.toString(quark.getClass().getTypeParameters()));

System.out.println(Arrays.toString(p.getClass().getTypeParameters()));

}

}

class Frob {}

class Fnorkle {}

class Quark<Q> {}

class Particle<POSITION,MOMENTUM> {}