Why does ZonedDateTime now = ZonedDateTime.now(); System.out.println(now.withZoneSameInstant(ZoneOffset.UTC) .equals(now.withZoneSameInstant(ZoneId.of(“UTC”)))); print out false? I would expect the both ZonedDateTime instances to be equal. 1 Answer … Read more
In Java, is it possible to have a lambda accept multiple different types? I.e: Single variable works: Function <Integer, Integer> adder = i … Read more
I have a problem with the stream of Java 8 foreach attempting to move on next item in loop. I cannot set the … Read more
This question already has answers here: Is there a concise way to iterate over a stream with indices in Java 8? (23 answers) … Read more
Is it possible to cast a stream in Java 8? Say I have a list of objects, I can do something like this … Read more
I’m having trouble fully understanding the role that the combiner fulfills in Streams reduce method. For example, the following code doesn’t compile: int … Read more
I have a problem trying out the Lambda expressions of Java 8. Usually it works fine, but now I have methods that throw … Read more
Javadoc of Collector shows how to collect elements of a stream into a new List. Is there an one-liner that adds the results … Read more
In Java 8, there is Stream.collect which allows aggregations on collections. In Kotlin, this does not exist in the same way, other than … Read more
General question: What’s the proper way to reverse a stream? Assuming that we don’t know what type of elements that stream consists of, … Read more