Java Sucks (So C# Didn't Have To) - Adele Carpenter - NDC Copenhagen 2025

This talk was recorded at NDC Copenhagen in Copenhagen, Denmark. #ndccopenhagen #ndcconferences #developer #softwaredeveloper

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Using Java as an everyday language can be absolutely infuriating. It's verbose and clunky, with all roads seemingly pointing to null. These are faults that users of other languages (especially of C#) love to point out.

At the same time, Java is mature, stable, backwards compatible, and runs just about anywhere. The community is pretty cool too!

This talk takes a light-hearted, warts-and-all look at some of the more frustrating aspects of Java, how the language has evolved over time and where it's headed next. A discussion on the consequences of language design decisions that can be enjoyed by programmers of all languages, but especially by C# users.

Expect to laugh, and yes maybe even cry, as we try to make sense of the beast that puts food on the table for millions of developers worldwide

We will cover:
Pivotal early design decisions such as checked exceptions and generics and how we still pay for those decisions today (that is, why do lambdas suck so bad?)
How Java has influenced the development of other programming languages, and vice versa
Most controversial language design decisions of late and the associated fallouts

Java developers will leave this session feeling validated and with a renewed love for the language that keeps a large chunk of the world running. C# developers will leave this session with a renewed level of smugness.