intermediateCore Java Fundamentals152 of 436
What is a static class? Why do we need it? Where have you used it (Helper/Utility example)?
Tests whether you know a static nested class doesn't hold an implicit reference to its enclosing instance, which is why utility/helper classes are made static -- they don't need outer-instance state, and keeping that reference would just waste memory and allow accidental coupling.
Ready to master this question?
Generate a complete walkthrough — background, the full answer in plain language, a working code example explained line by line, a real-world scenario, common mistakes, and how this same question gets asked in different ways.
Sign in to generate a response