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Elasticsearch stops working after I run the springboot Java program and elasticsearch transport node is not loading in my Java Program

Elasticsearch version 8.1.3 Java version 1.8 Im trying to connect elasticsearch with Java springboot program. My Elasticsearch works fine until I run the Java program, also my java program works fine but with “.d.e.r.s.AbstractElasticsearchRepository : failed to load elasticsearch nodes : org.elasticsea…

Pretty message on exceptions from REST app

I have a problem with my REST app. Here is the git link to ease your burden: https://github.com/TheNiceGuy123/AstonishingBackEnd Here is the raw code also: Classes posted in order: Employee Controller: Employee Service: Global Exception Handler: CNPNotFoundException class: ApiErrorModel class: I want to give …

How can I return null of denominator is 0 in this method Java

I am struggling with creation of a to calculate fractions and return in an array[3]. So if nominator is 7 and denominator is 3 it should return {2,1,3}, a fraction part and a integer part. If denominator is 0, the integer division should not be executed and I have to return null (not print it). That is what I…

Converting a scanner.next() to a char[]

I want to give a function a char array from scanner.next(). I only get an error message if I try to convert it like I do it now: This is the errormessage I get: It also shows this error on the other ones where I want to pass the char[] over. Need to add more text cause they say it

Best practice for storing TOKEN/password in Java

I’m working on a Java application that interacts with a REST API. To communicate with this API, I must use TOKEN, all these TOKEN are sensitive data and I cannot write in my code. So I’m looking for a way like a configuration file to store the TOKEN and access it. Currently, I made an XML file with all my