Java / Quarkus Interview questions
What is the purpose of Quarkus?
Quarkus exists to solve a specific mismatch: traditional Java frameworks were designed for long-running application servers, but cloud-native workloads increasingly need to start in milliseconds, scale to zero, and use minimal memory per instance — something the JVM's traditional startup path struggles with.
Its purpose is to let developers keep writing familiar Java code using standards like CDI and JAX-RS, while shifting as much processing as possible — annotation scanning, proxy generation, configuration resolution — to build time instead of application startup, so the runtime has almost nothing left to do before serving the first request.
The practical result is an application that behaves like a lightweight, cloud-friendly service: fast to start, cheap to run many instances of, and well suited to autoscaling and serverless platforms where you pay for exactly the compute you use.
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