Default threshold for moving an object from Young generation to Old Generation

Question

In java what is default threshold for young generation object to move to old generation. I mean how many GC an object need to survive so that it can be moved to old or tenured generation area of heap.

Answer 1

The option is called -XX:MaxTenuringThreshold.

Docs say, the default value is 15 for G1 and parallel collector and is 4 for CMS (source).