I am trying to reverse a map that has a String as the key and a set of numbers as its value My goal is to create a list that contains a tuple of a number and a list of strings that had the same number in the value set I have this so far:… Read More Reverse a Map which has A Set as its value using HOF
import ‘package:flutter/foundation.dart’; import ‘package:flutter_local_notifications/flutter_local_notifications.dart’; class NotificationManager { // ignore: prefer_typing_uninitialized_variables var flutterLocalNotificationsPlugin; NotificationManager() { flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin(); initNotifications(); } getNotificationInstance() { return flutterLocalNotificationsPlugin; } void initNotifications() { // initialise the plugin. app_icon needs to be a added as a drawable resource to the Android head project const initializationSettingsAndroid = AndroidInitializationSettings(‘@mipmap/launcher_icon’); const initializationSettingsIOS = IOSInitializationSettings( I… Read More argument type 'Future Function(int, String, String, String)' can't be assigned to the parameter type 'void Function(int, String?, String?, String?)?
I’m trying to create an opengl program that creates a 2d square, and applies 2 textures on it. I followed this tutorial: https://learnopengl.com/Getting-started/Textures This is my fragment shader: #version 330 core //in vec3 Color; in vec2 TexCoord; out vec4 FragColor; uniform sampler2D Texture1; uniform sampler2D Texture2; void main() { FragColor = mix(texture(Texture1, TexCoord), texture(Texture2, TexCoord),… Read More opengl won't overlap more than 1 texture
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 have the following sample data in a .txt file 111, Sybil, 21 112, Edith, 22 113, Mathew, 30 114, Mary, 25 the required output is [{"number":"111","name":"Sybil","age":"21" }, {"number":"112","name":"Edith","age":"22"}, {"number":"113","name":"Mathew","age":"30"}, "number":"114","name":"Mary","age":"25"] Sadly, I have not gone far because I cant seem to get the values out of each line. instead, this is what is displayed… Read More How to read from a .txt file into an array of objects
I have three files list filesl <- list.files(pattern = ‘RP-L-.*\\.xls’, full.names = TRUE) filesr <- list.files(pattern = ‘RP-R-.*\\.xls’, full.names = TRUE) filesv <- list.files(pattern = ‘RP-V-.*\\.xls’, full.names = TRUE) And I’ve attemped to read and merge two of them as follows: data <- map2_dfr(filesl, filesr, ~ { ldat <- readxl::read_excel(.x) rdat <- readxl::read_excel(.y) df <-… Read More Use map() function to read and merge another files list