Showing posts with label java8. Show all posts
Showing posts with label java8. Show all posts

Saturday, January 20, 2018

Invalid '@FunctionalInterface' annotation; Greeting is not a functional interface


Lambda expressions are allowed only at source level 1.8 or above https://stackoverflow.com/questions/22544064/java-8-lambdas-dont-work-everything-else-from-java-8-works-though

ec2-user@ec2 Permission denied