I would like to do something like below. A and B class will be my generic type as <T>. Example for a getter function for class A and B. I want to pass a getterFunction as argument to my sliceGenericData() and I would like to use it on type <T> (Class A or B). Since those classes have different nam…
Tag: function
How to create a map with an attribute as a key and a maximum value as a value
So, In college we are working with csv files and streams. Right now I am doing some homework but I’ve been stuck in this exercise for some days now. I have a csv file with some data about accidents (like the accident severity, the number of victims and so) and I have a function that reads that data and …
How to use my own method for event listening in javax.swing
I’m actually started learning about javax.swing for graphics. For event listening like KeyListener, MouseListener etc., I have to implement all their methods with their own headers. I previously worked in JS, and there event listening is very simple. So I decided to create my own class myButton which ex…
How to get the maximum occurring character and its occurrences from a user inputted String sentence?
I have a program that asks the user for a String sentence and output its maximum occuring character and its occurences. My issue here is that the function that counts the max character and its occurrences only counts that maximum character and its occurrences only for a single word(that is all lowercase) and …
How to make a self-referencing lambda function that also references locals in Java?
I am trying to make a lambda function that references itself, and it is used as a callback for an asynchronous process, so I cannot use a loop. If I declare the function like so : the compiler tells me The local variable func may not have been initialized. If I write it that way instead : the compiler says
Is there a way to reduce multiple methods as one method with Function as methode parameter?
I have several methods that are basically all the same except for one method that is called in these methods. Example: So the only difference is the method getDB(). Since I don’t want to have this method 10 times, I thought of writing this into a method and then controlling it via the input parameters. …
Is it possible to have values for class object in java, if yes how can we acquire it?
Let’s say, I am initializing a class obj as follows: Is it possible to initialize as such I mean we initialize String and primitive values like that, But I mean for any class. And how can we get them so they can be used in some method of the same class? Answer Yes if it is for built in types
what is “def” in Java class
Currently, I am using RestAssured for API automation in my project. As we know, it is a Java Project. When I look at the code of class named “TestSpecificationImpl” in Rest-Assured API. I can see that, it is using methods like: I heard about the concept of local variable type inference in java. Bu…
Why is function not returning array in Java?
I’m making a small script to calculate the Fibonacci sequence by having an array to give how many digits i want, I just can’t figure out why my fib function is saying that there is no array being returned. Code: Answer It’s a matter of scopes. Your only return statements is within the for lo…
java8 possibility to apply mathematical operators to functions
Assume, I’ve got two functions. I want to multiply these functions. So I want to get this lambda expression as a result: Is it possible in Java 8? Answer No, you won’t be able to do that with Function. Suppose you have a Function.multiply(other) method, what would be the result of performing multi…