Java 5 provides parameterized types

When a compiler compiles code containing the use of a parameterized type, erasure takes place.

This means that the intermediate code generated for lines 805 to 813 is the same as that generated for lines 781 to 789.

0805:        List<Shape> tList = new ArrayList<Shape>();
0806:        Shape tShape = new Shape(100, 200);
0807:        tList.add(tShape);
0808:        Circle tCircle = new Circle(100, 200, 10);
0809:        tList.add(tCircle);
0810:        Shape tShapeGet0 = tList.get(0); 
0811:        System.out.println(tShapeGet0);
0812:        Shape tShapeGet1 = tList.get(1); 
0813:        System.out.println(tShapeGet1);

0781:        List tList = new ArrayList();
0782:        Shape tShape = new Shape(100, 200);
0783:        tList.add(tShape);
0784:        Circle tCircle = new Circle(100, 200, 10);
0785:        tList.add(tCircle);
0786:        Shape tShapeGet0 = (Shape)tList.get(0); 
0787:        System.out.println(tShapeGet0);
0788:        Shape tShapeGet1 = (Shape)tList.get(1); 
0789:        System.out.println(tShapeGet1);