Java Generics

It seems that many examples of Java Generics fail to show the generic capabilities of this feature. In the code below, I first use the class Line to represent a geometric line and then as a line that Leisure Suit Larry might use in a bar. You can see the result of running the code in red, below.

import java.util.*;
import static java.lang.System.out; 

public class Line {
 T start;
 T end;
 
 public void print() {
  out.println( start + " ... " + end );
 }
 
 public Line(T a, T b) {
  start = a; end = b;
 }
 
 public static void main(String[] args) {
  Line.Point p1 = new Line.Point( 1, 1 );
  Line.Point p2 = new Line.Point( 2, 2 );
  Line j = new Line( p1, p2 );
  j.print();
  
  // 
  String intro = "Wow, you look HOT!";
  String pickup = "What's your sign?";
  Line getGirl = new Line( intro, pickup ); 
  getGirl.print();
 }
 
 static class Point {
  int x, y;
  public Point(int x, int y) {
   this.x = x; this.y = y;
  }
  
  public String toString() { 
   return "(" + x + "," + y + ")";
  }
 }
}

C:\src\java\generics>javac Line.java

C:\src\java\generics>java Line
(1,1) ... (2,2)
Wow, you look HOT! ... What's your sign?

C:\src\java\generics>