Getting last row's data in the map

My objective is to create a map.It have reqid,name and lowest status number of a set as a key.Here set refers to rows belonging to a specific Reqid.The value of the map is an Arraylist which consists of all rows as objects of a specific id.public class Ma

Override a class variable from parent classes function

I have a parent and child class.class a {val name :String = "jo" def extract(){ println(name) }}now i need to do as below.class b extends a { override def extract(){ override var name :String = "dave". //the problem is here and super.extract() nam

Why does BLOCKCHAIN.COM API only return recipient BASE58 addresses and omits BECH32s?

Following this post, I am trying to access all transactions within the #630873 block in the bitcoin blockchain.import requestsr = requests.get('https://blockchain.info/block-height/630873?format=json')data = r.json()When inspecting the (0-indexed) 4th t

Power Query: Function to search a column for a list of keywords and return only rows with at least o

I am making a simple Google-like search function in Power Query.Let's say I have a column called Description in a table called Database. The user then inputs some search queries like "dog, cat, animals". I want to filter Database for rows that contain

getApplication () in FirebaseMessagingService

Apparently FirebaseInstanceIdService is depricated. So, I'm trying to changed this code:import androidx.annotation.Nullable;import com.google.firebase.iid.FirebaseInstanceId;import com.google.firebase.iid.FirebaseInstanceIdService;public class InstanceID

Create PySpark dataframe : sequence of months with year

Complete newbie here.I would like to create a dataframe using pyspark that will list month and year taking the current date and listing x number of lines.if i decide x=5 dataframe should like as belowCalendar_EntryAugust 2019September 2019Octobe

Error 'textBaseline != null' after flutter upgrade

so i got the error below after upgrading flutter on master, building for web. Apart from upgrading flutter I didn't change anything. Switching branches and upgrading flutter again did not seem to work, as well as flutter clean and pub upgrade/ packages g

unit commitment problem using piecewise-linear approximation become MIQP

I try to use MILP (Mixed Integer Linear Programming) to calculate the unit commitment problem.(unit commitment: An optimization problem trying to find the best scheduling of generator)There are two optimization variables.Generator power :P(continuous vari

GoogleSpreadsheet is not a constructor error

(node:13696) UnhandledPromiseRejectionWarning: TypeError: GoogleSpreadsheet is not a constructorCurrently getting this error when trying to define GoogleSpreadsheet. Not sure what the issue could be here.async function accessSpreadsheet() { const doc =

Cannot find column name of a reactive dataframe in a shiny app

I have the shiny dashboard below in which I want to use a variable from my pickerInput() and create a plot. The issue is that my dataset is a reactive object and when I try to use table() I get object 'name' not found. If it would not be reactive it wou

Test the HTML generated by Quill in a browser

I have published two questions related to my problem, first of which was closed, but I still do not have the answer to my problem.My first question that was closed:Convert HTML to PDF using PrimceFaces 7.0 (or higher) Text Editor and QuillMy second questi

How to get data from an array inside session in codeigniter?

i want to get data from an array inside of session. i want to get the name of each array. But when i print $x and $y like in the code below, it doesn't print anythingTHE ANSWER BEFORE IS CORRECT BUT HOW ABOUT THIS$this->session->userdata['namearray'];t

Test the HTML generated by Quill in a browser

I have published two questions related to my problem, first of which was closed, but I still do not have the answer to my problem.My first question that was closed:Convert HTML to PDF using PrimceFaces 7.0 (or higher) Text Editor and QuillMy second questi

delete emp table data using ssis package

I want delete the data in the target server(postgres) tables data using ssis package.database : postgres server Table : empin execute sql task :scriptis: delete from emp and connection used odbcwhen i run the executesql task in ssis packageif emp table h

How to set connection friendly name

I have used http://github.com/streadway/amqp package in my application in order to handle connections to a remote RabbitMQ server. Everything is ok and works fine but I have a question?The current name for a connection is "ip:port" , but can become bett

how to make preloader show only once

I wish to preload only once. when the user first arrives on the home page of the website and not the next time the user comes back to the home page. Please let me anyone knows about thisThis is my code:HTML

How DMA Controller handles the Input devices like say Serial port

So, what I have learned so far is that CPU programs the source address, dest address, word count and the direction to the DMA controller whenever it needs to transfer the data from say a harddrive. But in this example, the hard drive is just a dumb device

create Ref-resolver from $ref in jsonschema in python draft7

I have json Schema{ "$id": "d:/documents/schemaFiles/WLWorkProduct/1", "$schema": "http://json-schema.org/draft-07/schema#", "title": "WLWorkProduct", "description": "", "type": "object", "properties": { "RID": { "de

Kafka Streams API: Session Window exception

I am trying to create a Kafka topology and break it down into more readable. I have a stream that I group by keys, and then I am trying to window it like so:SessionWindowedKStream windowedTable = groupedStream.windowedBy(SessionWind

Error with Spring batch Classifier Composite Item Writer

I have to basically produce multiple xml files for each file_id per currency ( ie. usd,zar ect) these transactions are all in 1 DB table. Do I create a composite writer for each currency and on my Item Processor I filter for each different currency that I

Error with Spring batch Classifier Composite Item Writer

I have to basically produce multiple xml files for each file_id per currency ( ie. usd,zar ect) these transactions are all in 1 DB table. Do I create a composite writer for each currency and on my Item Processor I filter for each different currency that I

Kafka Streams API: Session Window exception

I am trying to create a Kafka topology and break it down into more readable. I have a stream that I group by keys, and then I am trying to window it like so:SessionWindowedKStream windowedTable = groupedStream.windowedBy(SessionWind

How to get the second value in the id to make onchange function?

I want to get the quantity value on change to show in the input, I make it data-cat_id='{$quantity}' to show, but it cannot work.This value='{$id_book}' is cannot change to '{$quantity}', because id_book I want to use other place. Below is my coding

Initialization of 'UnsafePointer' results in a dangling pointer [duplicate]

This question already has answers here: UnsafeMutablePointer Warning with Swift 5

Cannot find column name of a reactive dataframe in a shiny app

I have the shiny dashboard below in which I want to use a variable from my pickerInput() and create a plot. The issue is that my dataset is a reactive object and when I try to use table() I get object 'name' not found. If it would not be reactive it wou