Answer
Automated memory cleanup removing unused objects.
Prevents memory leaks and improves performance.
Prevents memory leaks and improves performance.
Quick Answer
Java garbage collection automatically frees memory occupied by objects with no live references. The GC runs in the background, identifies unreachable objects, and reclaims their memory. You can't force GC (System.gc() is just a hint). Modern GC algorithms (G1, ZGC, Shenandoah) minimize pause times. Memory leaks happen when you keep references to objects you no longer need.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ