I want to run a container tests that running ES image via Docker. After some research I found https://www.testcontainers.org/ and they also have a built-it ES module. Because my development …
Tag: java
ArrayList gets overwritten everytime a new instance is created
I’m a new programmer, I’m terribly sorry for the walls of code, but I simply can’t find the error. I am tring to create an arrayList that stores input values, but everytime I create the 2nd …
How to send a list of custom objects over a socket?
public class shapeInfo { int x; int y; int z; int t; Color shapeColor; int shapeType; } static ArrayList shapeStack = new ArrayList(); How can I send …
When should we call join() after ForkJoinTask.invokeAll()
The API says: “Method invokeAll (available in multiple versions) performs the most common form of parallel invocation: forking a set of tasks and joining them all.” So my assumption is if I use …
How to validate spaces between two words using regex in a string [closed]
I am trying to validate string to accept spaces between two words (in the middle). I want a regex that will accept “hello world”. I tried using [p{IsAlphabetic}p{Digit}-_]{0,255}. Thanks in …
Using Java Optional in Kotlin DTOs
Currently I’m using Java 8’s Optional in my Kotlin DTOs as follows: class dto { var prop1: String? = null var prop2: Optional? = null } The purpose of it is that for some …
How can I change the “disabled icon” style using SynthLookAndFeel?
I’m currently designing a Swing app with a custom “yellow on black” Look and Feel, and it seems SynthLookAndFeel is the way to go. All my buttons consist of an ImageIcon (no text), for example: …
How can i add data to th:action form
I have a spring-boot application. Full url that I need: localhost:8080/company/{companyName}/users?name={name}. In the beginning i choose company, for ex. : localhost:8080/company/google. The …
CSV file from HDFS to Oracle BLOB using Spark
I’m working on Java app that uses Spark 2.3.1 to load data from Oracle to HDFS and vice versa. I want to create CSV file in HDFS and then load it to Oracle (12.2) BLOB. The code.. //create …
How to parse JSON data without define array in JSON in Android Studio
I am new in Android I am trying to develop an application which is used to validate ifsc code by entering code in edit text. So in this project, I am using Razorpay JSON to fetch data but when I …