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Filter list inside the list of objects

I have a following list of objects: List<Parent> parents = new(); Parent contains List<Children> list of children. What I want is to filter list of

What is a NullPointerException, and how do I fix it?

What are Null Pointer Exceptions (java.lang.NullPointerException) and what causes them? What methods/tools can be used to determine the cause

Failed to connect to the bus: Address does not contain a colon

I'm getting this error when my circleci job is building my cypress test: [432:0312/154643.301773:ERROR:bus.cc(392)] Failed to connect to the bus: Failed to con

Append lines separated by comma while preserving the existing new line

Bash script used: #!/bin/bash set -xv IS=$'\n' list=$(cat exlist_sample | xargs -n1) for i in $list; do echo "$i" | rev > slist echo "$i" >> z

How to prevent Jest from combining results?

I currently have two jest test cases the first one passes, but the second fails because its adding the sum of the previous case to that one test('Subtotal to be

Python: extracting specific values out an numpy array of indices

I have a numpy array of indices. For example: indices = np.array([0, 1, 2, 6, 7, 9, 12, 13, 14]) I would like to make an array signals = np.zeros(np.amax(indi

how to get AWS SMS publish results in code

I've scoured the AWS documentation to see if there is a a way to get the SMS delivery log via code, but i'm at a miss, I can get the logs via cloud watch but I

Is it possible to connect a PHPmyAdmin database using Angular and Postman?

this is my first time using StackOverflow and I don't know how this works but I'll be quick and short. So, I'm in an internship and I'm learning Angular and I o

Deploy a specific MarkLogic Database configuration using ml-gradle

Is there a CLI argument or parameter to deploy configuration of a particular database instead of deploying all the database configurations under src/main/ml-con

Apply Power Query to all columns

I have a Power query that finds and replaces values listed in a table that I work through from here Bulk Find And Replace In Power Query But I need to apply it

array_combine() expects parameter 2 to be array, string given in php

Array ( [0] => tttt [1] => tttt ) $terms_keys = array("terms"); $terms_array = array(); foreach ( array_map(null,$inv_terms) as $key => $value

Java Error: illegal start of expression

I'm basically refining, completing and trying to compile a test code from a reference book for java beginners. The objective is to create a guessing game wherei

Gettingerror: legacy-install-failure, while installing basemap

I am trying to install Basemap using pip, however at some point it reaches the error: note: This error originates from a subprocess, and is likely not a problem

Get updated value from database

How do I watch for a specifc Mongodb-query? Currently I have tried with collection.watch(), but I am only getting the new value. An example: user1 = [user3, use

Chromium flatpak default startup incognito-mode

How can I make the Chromium web-browser always start in incognito mode when it was installed using Flatpak on Kubuntu 22? I can't seem to find a solution anywhe

Keycloak - React.js cannot call API

I have a simple React.js application. I want to test if it can call an endpoint from my API. Both my API and React.js application are using Keycloak for Authent

Cmd is not showing Java Version

I am running for Java -version & javac -version in my cmd, but it isn't showing any output. It just goes to the next line, and doesn't show anything. Can an

Uncaught ReferenceError: process is not defined in webpack

I was working on a React app with typescript. I got it working, then I wanted to add css-loader and changed the webpack from 4 to 5 and updated all packages to

What is the proper way to POST data using javascript fetch? [duplicate]

I am trying to get away from jQuery and start using promises and arrow functions. Try as I might, I can't seem to pass data to PHP using java

PHP Notice: Undefined index: user_type in /var/www/mysite/public_html/index.php on line 66, referer: https://example.com/

I just transfer my PHP app, I used to have my app on example.com/app but now I transferred the app to its own domain, othersite.com. My principal site and PHP s

Is it possible to use camera permission but block "Take video" option in a iOS App?

I'm working on a hybrid project that uses cordova for building both iOS and Android. My problem is with iOS uploads. There's an option for "uploading" photo, wh

In Rust, what happens if main function returns Err?

According to The Rust Reference, If a main function is present, (snip), and its return type must be one of the following: () Result<(), E> where E: Erro

What is the time complexity of suggested solution?

This is the solution for the following problem: Given two strings s and t of length N, find the maximum number of possible matching pairs in strings s and t aft

Seperate django admin login from normal user login

How can you separate the django admin login from normal user login Can it be done using djangos authentication model? If it cannot be done that way, how to do i

Typescript reduce return wrong Type and also forbid to assert it

Faced very strange ts behaviour. type Labels = Record<string, boolean | undefined> type LabelGroups = Record<string, Labels> export function reduc

MYSQL or Laravel Eloquent How To Count The Detail From This Order

[MYSQL QUERY / LARAVEL ELOQUENT QUESTION] Hi, I really need some help with MYSQL Query this 3 tables I have. The order table and the details it's a manually inp

org.testcontainers.dockerclient.DockerMachineClientProviderStrategy - docker-machine executable was not found

When I try to run test containers I get the following error. The docker machine not found in /root/.sdkman/candidates/gradle/current/bin, /usr/local/sbin, /usr

I can't solve the dependency tree every time i try to install @craco/craco

Unable to solve dependency tree trying to install tailwind. This is my package.json: { "name": "front-end", "version": "0.1.0", "private": true, "devDep

How To Find Out Where the Short URLs Point To with Javascript

I have created a short url, let say https://my.short.link/foo, that is pointing to https://my.other.website/bar. How can I retrieve this url with a javascript m

How to get "Total number of messages on the IoT Hub exceeded the allocated quota" message from Azure iot sdk c

I'm using Azure iot sdk c, sometimes my iothub service can reach to maximum quota, I can see connection error or backend can't get data, but not able to obvious