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Tag: lambda

Java 8 reduce method calls depending on a value

How to optimize method that returns the first non empty value returned of the checkN() methods and prevent the rest method calls and isEmpty() calls: #1 I thought of using stream filter and return first that has value, but it requires to call each check: SOLVED as M A suggested, finalized solution for me was: Answer Instead of constructing a

Can I use a lambda function like this?

I want to try to use lambda functions (which I do not understand well) so I can learn more about them. I have an assignment on trees that has us making a family tree class. children is a set of all of the children nodes to this node. Also as a side question, does this usage of AtomicInteger work similarly

Java 8 edit stream elements

I need to filter and modify the values of the filtered object. The logic that must be filtered is given below. I have tried it like this. But how can we set the value of isUpdated = true using java 8? Answer Base on the logic given, findFirst should be used as you stop after the first instance is found.

field initialization with `val myVal: (long: Long) -> Unit)` what does it means?

I’m new to using Kotlin, so far seems amazing, however I don’t quite understand what’s going on here: So, here’s what I do understand: I am creating a class that contains a method which receives a MyObjectClass When I call onClick(someObject) I am actually indicating to call clickListener(someObject.longField) I should use this callback method like this: Unit is a Kotlin

How would I turn this lambda function to a simple function?

I’m trying to understand lambda formatting in Java and could really use some help converting this function into a standard function to see how this works: Answer Start with the code to create an anonymous Callback object: Then paste in the right hand side of the -> lambda operator as call()’s method body. The only modification needed is to make