JavaBlogging

This post is inspired by an entry on twofoos.org blog.
Imagine that you have a code that invokes a method – lets call it ‘A’. Now is it possible that by adding another method (B) to the code I can make that invocation redirect to executing B instead of A? Sure! It’s simple stuff – [...]

Today a story about a design decision whether or not to implement the Comparable interface. We will start with the following code snippet – a simplified version of a UI widget that holds info about a person and can be selected by the user:

public static class SelectablePerson {
private final String name;
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Before I say anything I want to share with you a code snippet that is a simplified version of something I have recently wrote in my work. There is a small, yet painful bug in this code… can you see it?

public static class Point implements Comparable<Point> {
private int x, y;

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