Developers make assumptions about how our code will behave when executed, but we’re not always right. Without certainty, it is challenging to write programs that work correctly at runtime. Java ...

In the last three posts, we looked at a few different ways to walk a file tree. Let’s leave file walking behind, and look at a rarely used, but very useful feature of the Java language, namely ...

The Object Oriented paradigm is influenced by the design by contract principal, wherein, the creator and the consumer mutually agree to follow certain rules. The design by contract theory states that ...

Unlock the full InfoQ experience by logging in! Stay updated with your favorite authors and topics, engage with content, and download exclusive resources. Birgitta Böckeler, Distinguished Engineer at ...

The term assert is a Java keyword that was introduced into the language with the JDK 1.4 release in February 2002. Java's assert keyword is unique in two very interesting ways: The Java assert is ...

Assertions are a fairly simple construct added to the soon-to-be released J2SE (Java 2 Platform, Standard Edition) 1.4. As a basic description, an assertion specifies a boolean-typed expression a ...

This article explains Chapter 12, "Exceptions and Assertions," from "THE Java™ Programming Language, Fourth Edition." The exception mechanism in the Java ...

Qualitätsziel Fehlgeschlagene Tests sollen ohne Debugging erklären, welches Verhalten verletzt wurde, welcher Wert erwartet war, welcher Wert tatsächlich vorlag und in welchem fachlichen Kontext der ...