Tutorials

Testing equals() and hashCode()

When you working with Java Beans you almost certainly overwrite the equals(), hashCode() methods. But how to test them? The equals contract which is described in the JavaDoc of the Object class is …

An extensible implementation of the toString() method

The toString() method which is definied by Java’s object class is used by many libraries, frameworks and the JVM itself to output information about an object. Especially when an when error …