Java 11 and 12 – New Features

Code check – part 2

One of our programmers, Pavni, tried using var with generics and collection classes, but her code doesn't seem to output the sorted collection of pens. Can you help? Check out the following code:

class Pen implements Comparable<Pen> { String name; double price; public Pen(String name, double price) { this.name = name; this.price = price; } public int compareTo(Pen pen) { return ((int)(this.price - pen.price)); } public String toString() { return name; } public static void main(String args[]) { var pen1 = new Pen("Lateral", 219.9); var pen2 = new Pen("Pinker", 19.9); var pen3 = new Pen("Simplie", 159.9); var penList = List.of(pen1, pen2, pen3); Collections.sort(penList); for (var a : penList) System.out.println(a); } } ...