/**
 * Generics Compilation questions.
 * 
 * @author Nathan Sprague
 * @version V1, 8/2016
 *
 */
public class CompileDriver {

  public static void main(String[] args) {

    Pair<String, Integer> p1;
    Pair<String, Number> p2;
    Pair<Object, Object> p3;
    Pair<?, ?> p4;
    Pair<?, ? extends Number> p5;

    p1 = new Pair<String, Integer>("A", 7);
    int a = p1.getSecond();

    p1 = new Pair<Integer, Double>(23, 12.0);

    p2 = new Pair<String, Integer>("B", 8);

    p3 = new Pair<String, Integer>("C", 9);

    p4 = new Pair<String, String>("House", "Car");
    p4 = new Pair<String, Integer>("D", 10);

    Integer b = p4.getSecond();
    Integer c = (Integer) p4.getSecond();

    p5 = new Pair<String, String>("E", "G");
    p5 = new Pair<String, Double>("E", 11.0);
    p5 = new Pair<String, Integer>("E", 11);

    Integer d = p5.getSecond();
    Integer e = (Integer) p5.getSecond();
  }

}