Interview Q&A / Java
Java interview questions
Collections, the JVM, strings, exceptions and threads, the backbone of most campus placement rounds.
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- What is Metaspace and how is it different from PermGen?
Metaspace stores class metadata and, since Java 8, replaced PermGen. PermGen was a fixed-size part of the heap, while Metaspace uses native memory and grows as needed unless MaxMetaspaceSize is set.
IntermediateQuick answer1 min read