Can anyone explain the concurrent modification exception in java with example?

Answer 1

When one thread iterate the collection and other thread try to modify that collection then this exception comes.

Check here with example:

https://www.journaldev.com/378/java-util-concurrentmodificationexception

Answer 2

🅰🅹 - ɪ'ᴍ ᴄʀɪᴍɪɴᴀʟʟʏ ɢᴏᴏᴅ!

It's not just with multi-threads. This can occur on the same thread when attempting to add or remove an item in a list while iterating through the list.