While debugging Java codes what does @ mean in statements like {Instance@789} or "SomeThread"@321: RUNNING?

Issue

The "@" seems to be everywhere when I debug. They are always preceded by some instance/variable name and followed by a (usually three digits) number. What does it mean? I have an image below

Taken from https://medium.com/@andrey_cheptsov/intellij-idea-pro-tips-6da48acafdb7 .

Solution

@730 means the 730th object created since the application started. It is not the hashcode. Length of this can be more or less than 3 digits.

It's totally depends upon which IDE you are using, may eclipse will give something else instead of @730 and in different format also, so it is the way of intellij to maintaining the debugging.

Answered By - ajay tomar