I have a system that takes some X and Y values for drawing stuff on a canvas. Now, I want a way to set the X or Y of one of the components to a non-static value, by setting its value to a function. For example, instead of writing something like: rect.w = 50; I… Read More Is there a way to use getters as values?
I’m trying to get getter functions in javascript instance. Ideal(pseudo): class T { internal values = a, b getters = c, d } const getters = [] for (key in test) { if (test[key] is getter) getters.push(test[key]) } getters.forEach(getter => (getter.bind(test))()) // calls c() and d() I thought Object.getOwnPropertyDescriptors can give me a getters, but… Read More How can I get getter functions in javascript?
I want to output a boolean as true indicating both maps have same Key and values. If i use equals() it returns false. How can i output as true , Object references are different. But the entries are same I have 2 maps below Map<String,Information> map1=new HashMap<>(); map1.put("key1", new Information("10","20","30","40")); map1.put("key2", new Information("11","22","33","44")); Map<String,Information> map2=new… Read More Comparing 2 HashMap with Key as String and Value as UserDefined Object
I was plying with higher order functions, and I started getting different results when I created two instances and assigning them to variables. I reduced the issue to the following example: #include <iostream> using ColorGetter = int(*)(void); auto paint(const ColorGetter &f) { return [&]() { return f(); }; } int colorA() { return 10; }… Read More C++ higher order functions: different results when declaring multiple functions
I have a method that works fine. This is how it looks. private ArrayList<Car> carsInStore ; //in car class have setter/getter/quals/Constructor. public boolean checkIfcarInStore(Car c) { for (Car car : carsInStore) { if(car.equals(c)){ return true; } }} I wanna switch this to Lambda. but I am not sure how fill in the if (condition) return… Read More check each object, return true when the first condition is met, else return false
I’m trying to write a python function decorator, and part of my implementation is that I need to capture the function call and look through the supplied values. I already have the function signature by using inspect.signature, but I’m unsure how to compose it with passed arguments. Say I had the following def decorator(func): def… Read More Capturing a function call as dict
I have already asked one question about this here but, that answers about only strings. I could not edit that as there a couple of answers there already. Now, I get it how to split it with a space as given in that post. But, how can I split it with objects of custom class… Read More How to split an array of objects in java or Kotlin?
My class is as below: class Member: def __init__(self, name, zip, hire_date, birth_date): self.id = id self.name = name self.zip = zip self.hire_date = hire_date self.birth_date = birth_date def get_name(self): return self.name def get_birth_date(self): return self.birth_date def get_hire_date(self): return self.hire_date def get_zip_code(self): return self.zip I have need to quick sort a list of this class… Read More How to quick sort list of objects by different attributes using the same method?
I noticed that when others are getting this problem, it is because they are trying to cast objects. I am not trying to cast. Furthermore, I am trying to ask if an object exists in a data table using Spring Boot repository. The following issue is occurring: What is the issue exactly? The model: @Entity… Read More Class X cannot be cast to class Boolean (X is in unnamed module of loader 'app'; Boolean is in module java.base of loader 'bootstrap
I’m new to Spring and I’m probably making the dumbest mistake, but I can’t solve this problem for more than 2 hours. According to the video tutorial, I did Pagination, I did it exactly like his, but he did not have relationships between entities. I think the error is in a one-to-one relationship between Author… Read More javax.persistence.EntityNotFoundException: Unable to find kg.library.spring.library_spring.entity.Author with id 10000001