What does this sign exactly mean? |=

Question

|=

I\'m curious to learn about this operator, I\'ve seen this notation used while setting flags in Java.

for example:

notification.flags |=         


        

Answer 1

This syntax is also available in C/C++ and other languages. It is a bitwise OR and the same as:

notification.flags = notification.flags | Notification.FLAG_AUTO_CANCEL;

and similar to other operators like addition, subtraction, etc. For example:

i += 5;

is the same as:

i = i + 5;