I have a TreeSet of Strings (hardcoded). Want to check that a given parameter String eg. "Person" if present in the TreeSet then return true otherwise return false.
Note: this question is not related to java.util.Optional.When dealing with streams, I often use logic like this:
I have a String as "ishant" and a Set<String> as ["Ishant", "Gaurav", "sdnj"] . I need to write the Predicate for this. I have tried as below code, but it is not working
I'm completely new to Java 8 and I'm trying to wrap my head around why the last test is false.Output:
Why does the below code return Predicate<String> and not boolean? My understanding is that the !s.isEmpty() check here is going against the Predicate boolean test(T t); The return type here is boolean.
As a part of a Tic Tac Toe playing bot, I need a function that evaluates combinations of tiles to points. The code would look something like this:
I know it may be a very basic question on SO but I am new to Java8.I want to know what is the difference between a Predicate and a Function Interface in Java8?
I found this sample of code on SO (can't remember from where :/) that allowed me to check for line code arguments when launching my application :