Java Lambda Expressions cannot have their own state, like other classes can. The only way a Java lambda expression can have any kind of internal state is by referencing a variable declared outside the lamdba expression. This video explains how that is done, and the rules for doing so.
This video is part of a playlist on Java lambda expressions which you can see here:
• Java Lambda Expressions
I also have a text version of the Java lambda expression playlist here:
http://tutorials.jenkov.com/java/lamb...
On this page of the site you can watch the video online Java Lambda Expressions #3 - Variable Capture with a duration of hours minute second in good quality, which was uploaded by the user Jakob Jenkov 29 May 2018, share the link with friends and acquaintances, this video has already been watched 31,815 times on youtube and it was liked by 640 viewers. Enjoy your viewing!