Category "java"

"Cannot find symbol" error when creating an instance of an object

I'm new to using maven and have a Project where I'm trying to create an instance of an object but keep getting the error: error: cannot find symbol Comm

Is there any an issue with the file name openjdk-8-jdk-headless?

I am trying to install Spark which requires Java with using !apt-get install openjdk-8-jdk-headless -qq > /dev/null And I get an error after it. E: Failed

Java coding style to be more concise

How can I compact these code in Java without creating other objects? myObjectNumberOne.setTitle("title"); myObjectNumberOne.setBody("body"); myObjectNumberOne.s

Array Problems java.lang.ArrayIndexOutOfBoundsException: 9

I am trying to write a class that takes a phone number that the user inputs as a string, then stores each digit in an array. I converted the string to a long us

french accents giving "<?>" in http responses with correct charset (Java)

Calling an API that returns french sentences, all the accented characters are displayed like <?> in my java code, even if the charset is well defined (app

Swing Timer stopwatch in Java

Can someone provide me an example of a Swing Timer stopwatch GUI in Java using a constantly-updating JLabel? I am not familiar with using @Override, so please

get a date using a JDateChooser and save it into mysql database

I need to read a date from a JDateChooser and save it into a MYSQL database table using the ActionPerformed method of a JButton. There are three JDateChooser

JVM MaxHeapSize := 0 - what does this mean?

I have seen other questions on here like: How is the default max Java heap size determined? and Understanding java heap I run the command to see my heap size ja

How to generate java client code for swagger REST API documentation

My scenario is the following. I have a swagger .json eg.: http://petstore.swagger.io/v2/swagger.json I want to use a generated java client for the REST API abo

What XPath to select only non-taged text inside div. Selenium. Java

I want to select only the text "only this text" from the snipet below using XPath (in Java) but that text is random and I don't know what is written there. &l

Exception class jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class java.net.URLClassLoader

I don't understand how to fix it, first time i see mistake like this. i downland this from github https://github.com/nikishubin/Notebook but its does not work O

HTTP status 404 - Not Found while creating springBoot Application

This a springboot Application. It run perfectly but did not get output (it shows me HTTP Status 404 error in browser) pom.xml <project xmlns="http://maven.

Maven is not using Java 11 - Fatal error compiling: invalid target release: 11

I am trying to compile my project with Java 11. When I try to run the application with Java 8 as the Java version in pom.xml, it works fine. But when I try to r

Why Getting NoClassDefFound error for JedisConnection when using Spring Redis

Hello when trying to use spring-redis i am getting java.lang.NoClassDefFoundError: Could not initialize class org.springframework.data.redis.connection.jedis.

how to read json response in jsp

My client side program is like this: DefaultHttpClient httpClient = new DefaultHttpClient(); HttpResponse res = httpClient.execute(req); Server side, I have

Check whether the document exists using Mongodb and Java?

I have created a simple java application as my college mini project in which one of the module I'm allowing users to perform operations like insert, delete, upd

Get nth largest data value in subtree of BST

I'm looking to return the nth largest data value in the subtree rooted at this node in a BST that can have duplicate values. Right now I have this but it doesn'

Could not resolve com.amitshekhar.android:android-networking:1.0.2

i am trying to import network library , but android studio shows up with this meessage:ERROR: Unable to resolve dependency for ':app@debug/compileClasspath': Co

Applovin Template native ad in recycler view adapter

I need help implementing Applovin native ads in recycler view. I cannot find any references on how to implement app lovin native template ads in recycler view a

Lombok doest not work in quarkus extension

It's the first time that I have to write a Quarkus extension and I'm having problems with Lombok, after that, i have added the dependency to the pom's dependenc