Couverture de Chris Hermansen: Don't be Afraid to Create

Chris Hermansen: Don't be Afraid to Create

Chris Hermansen: Don't be Afraid to Create

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 Chris Hermansen: Don't be Afraid to Create Summary Jim Grisanzio from Java Developer Relations talks with Chris Hermansen, a Java developer, consultant, and data analyst from Canada. Chris discovered Java in the 1990s and was drawn to its free accessibility and object-oriented design. He particularly appreciated Java's straightforward single inheritance model over C++'s complexity. But Chris's path to technology came through mathematics rather than computer science. He identifies streams as Java's most transformative feature for data analysis work and praises how it improved code readability and maintainability. On consulting, Chris cautions against Silicon Valley mantras like "fail often" when applied outside prototyping contexts, and he observes cultural differences in how engineers approach problem-solving with some preferring abstract discussion while others focusing on concrete data. Chris emphasizes that technology work remains fundamentally human and stresses the importance of listening, maintaining humanity in professional life, and avoiding corporate stereotypes. For students, he notes the differences between learning with modern IDEs versus the command line tools of his era when he learned to code, so he advises that new learners to try multiple approaches to deepen their understanding. His core message, which became the episode's title, is simple: "Don't be afraid to create." Discovering Java in the 1990s Chris discovered Java in the mid-1990 when Java was announced while working as a data analyst. "Java came along and it was free to use. It wasn't open source at that point, but it was free to use," he says. "And it really intrigued me because of its object-oriented approach to things, which was something that didn't come with the platform we were working on." Unlike the purchased software products he was using at the time, Java offered a free and accessible alternative that promised serious long-term value. He also appreciated how Java's design avoided the complexities of C++, especially the problems with multiple inheritance. He and a colleague had been discussing moving from Pascal to either C or C++, but his colleague had concerns about C++'s complexity, particularly around multiple inheritance. "The first thing that really jumped out to me was the straightforward single inheritance pathway and the use of interfaces to define contractual relations between code," Chris says. Java's approach to inheritance immediately stood out as cleaner and more maintainable. Features like array bounds checking and interfaces for defining contractual relationships between code further convinced him he was learning something that would age well. "I felt that I was learning something that would wear well over time. I wouldn't turn around and look at what I'd done 10 or 15 or 20 years later and say, yuck, what was I thinking?" After committing to Java and sticking with it through the learning process, he found it repaid his effort many times over. "I liked it and I stuck with it, and I found it paid me back enormously for my investment in learning." Career Path Through Mathematics Chris's path to technology came through math rather than traditional computer science. He actually stumbled into science during the registration process at school in the 1970s and eventually pursued math after deciding against engineering. His career took him through various mathematical applications, including consulting and data analysis positions in forestry. Java's Evolution: Streams and Beyond Regarding Java's evolution, Chris identified streams as the biggest feature improvement for his work. When asked about new features that have been useful in his applications, he immediately identifies streams as transformative. "I mean, streams was the big one. Streams just made a whole difference to the way you would handle data," he says. He contrasts the old approach of writing hundreds of lines of nested for loops with the more elegant stream-based approach: "And so streams has just made that a whole lot easier. And the code is so much more readable and maintainable than the old 500 line do loops that we used to have in Fortran that turned into the 375 line for loops in Java. Anyway, so streams is a big one, a really big one for me. The biggest, I would say." He also valued the introduction of templates (generics) in Java 5 or 6, which represented a significant evolution in the language and allowed applying libraries to custom classes. He praised the Java community for keeping the platform and ecosystem viable, noting that the combination of an active developer community and a satisfied user base creates a virtuous cycle that keeps the platform evolving and improving: "There's enough Java programmers out there, enough people interested in the continuing viability of Java that they keep it going, that they modernize it, that they solve new problems with it, that they make it perform better than it ever has before." He added a "big ...
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