Can you list different generations of garbage collectors and explain their features?

In Java, the Garbage Collector typically divides memory into generations for optimization:

1. Young Generation — where newly created objects are placed. Garbage collection here occurs frequently but quickly, as most objects become unnecessary rapidly.

2. Tenured or Old Generation — objects that have survived several collection cycles in the young generation are moved here. Garbage collection occurs less frequently here but takes more time.

3. Permanent Generation (or Metaspace in newer versions) — stores class metadata and other administrative information.

This division allows for efficient memory management, minimizing pause times during garbage collection and improving application performance.