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Throughput - A Corda story

java-interview-questions-answers

I recently rolled off a project focusing on the performance of Corda for a particular use-case. The result of this project lead to us processing 115 million requests within a single day over a network of over 170 nodes. Furthermore, Corda was able to handle 6300 requests per second confirming that the highest requirement of the network was met. This ...

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The power of small declines

Last year I wrote about the power of 1% improvement, and how powerful this can be when that improvement occurs frequently. For example, if a team improves 1% a week then over the course of 50 weeks (a year) they would improve by over 62%. A few days ago I had a revelation: the opposite is also true. If a team ...

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Your Guide to Becoming a Better Android App Developer

Did you realize that consumers spend nearly $86 billion on apps each year? If you are an app developer, finding a way to make your programs stand out from the competition should be your main goal. Failing to focus on making your apps functional and engaging can make it difficult to achieve the level of success you are after. While ...

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Unit Testing Anti-Patterns, Full List

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I wrote some time ago about anti-patterns in OOP. Now it’s time to write about unit testing anti-patterns—because they also exist, and there are many. I will try to include every example I know in this list. If you know any others, please add them via a pull request or post a comment below. For each anti-pattern I will try ...

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Five Golden Backticks

Five Kinds of Strings Ever since Java 1.0, we’ve had string literals "like this". What other strings might we want? Other programming languages give us: Expression interpolation: s"I am ${age - 10} years old." Interpolation with formatting: f"Price: $price%8.2f" Strings with internal syntax that is checked at compile time: r"[0-9]+([.,][0-9]*)? or xml"<a href='http://java.sun.com'>The Java home page</a>" Raw strings in which ...

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The Functional Style – Part 9

Pragmatism In this series we’ve taken a whirlwind tour through the topics related to functional programming that I think are most important to know, plus some extra that I think are good to know. We started with the basics, defining what I believe to be the essence of FP, and showed how programming without reassignment is actually feasible by using ...

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Work on Apache Camel 3 has finally started

We are starting the work on Apache Camel 3. We are working at multiple levels to improve Camel and introduce new features. The first work has actually started by Guillaume Nodet in the start of October, where he jump started by cleaning up the codebase, removed deprecated code and components, improving the routing engine and other internals in the core. His work ...

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Put Gosec in Your Pipeline to Spot Source Code Security Problems

Golang keeps trending up and to the right in programming language popularity, for many reasons. Great libraries, which means more users, which means more libraries and more users — more users like me who are prone to make mistakes. To err is human, to forgive divine – Alexander Pope Who can say at one time or another they haven’t accidentally ...

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