Java
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Java – total flight time between two time zones?
If we leave Frankfurt at 14:05 and arrive in Los Angeles at 16:40 How long does it take? I've tried the following: Zon…… -
Java – running applets in Web Applications
I want to run a simple applet in my web application using the HTML applet tag, but it gives an error java. lang.ClassN…… -
How to use multi-threaded wait and notify protocols
Specifically, someone can tell me what's wrong with this code It should start the thread, so it should print "input th…… -
Java – some values are missing when sorting maps by values What causes this strange behavior?
I tried to sort the maps according to word frequency (i.e. based on value) To this end, I have overwritten the compara…… -
Compiler error – ‘error: cannot find or load main class com sun. tools. javac. Main’
I just started learning Java. I installed JDK on my computer, but now I'm trying Java's simple instead of compiling I …… -
Java – search WindowBuilder documentation / APIs
I'm working on a project using WindowBuilder pro. While trying to catch it, I've been looking for good documents witho…… -
Any Oracle TNS inefficient (many round trips, latency) solution from Java applications?
I'm working on a very slow SQL query (from a Java application using hibernate deployed in JBoss 5.1) This particular q…… -
When and where are strings initialized / stored in Java source code?
This is the source code I have public class Koray { public static void main(String [] args) { System.o…… -
Java – how to interpret the analysis results?
I used NetBeans and visualvm to run the memory profiler and received the results, but there was no clue how to analyze…… -
Java – unable to convert project… File error in IntelliJ ide ended prematurely
I use IntelliJ idea as the IDE for running Java programs Power fluctuations cost the computer to restart Now when I re…… -
Java – spring batch and integration
I'm a beginner in spring. I have to do a project for the school What kind of projects can I use spring batch and integ…… -
Java – allows users to enter only positive integers (no decimals or strings)?
I know how to ask users to enter positive integers, but I don't know how to handle code to avoid input errors, such as…… -
Java – some absolute methods on ByteBuffer are missing
Maybe I will solve this problem in the wrong way, but I lack some absolute put methods on ByteBuffer If you look at By…… -
Javadoc for private methods (BlueJ)
I'm using BlueJ and I want to generate Javadoc for the whole project Solution This link indicates that BlueJ will only…… -
Java gets the exception name only if there is no stacktrace
How do I get the exception name without getting the stack trace? I'm using exception Tostring() converts the thrown ex…… -
How to solve module info in jdk9 / java-9 Java compilation error
I tried to run under code using jdk-9, but I encountered a problem compiling with the command command javac -d mods .\…… -
How does Java initialize the JAXB / Jax WS / etc implementation?
I just want to know how Java includes standard reference implementations (such as JAXB / jax-ws in jre6) in JRE, while…… -
Java – Maven dependency for project level self placed jars
I created a Java class and converted it into a jar file So I want to use the jar files I put at the project level, suc…… -
Java – insert column labels into PivotTables using Apache POI?
I created a PivotTable using Apache POI 3.11 like this: FileInputStream file = new FileInputStream(new File(path+fname…… -
Java-8 – how to skip from files Lines gets the even number of rows of the stream
In this case, there are only odd rows of meaningful data, and there are no characters that uniquely identify these row…… -
Java – NetBeans and external configuration files
I am developing a java desktop application and want to have an external configuration file Solution You can add it to …… -
Java – how to merge in jgit?
How do I merge in J git? Suppose I want to merge master with foo branch, what should I do? Solution To merge, you can …… -
Java – setter method in constructor
Get a problem I have public class Student{ private String studentNumber; private String studentName; pr…… -
Text navigation in Java – JDB does not work in bash
When I run JDB in Bash, the arrow keys generate strange garbage: up: ^[[A down: ^[[B left: ^[[D right: ^[[C So I can't…… -
Java – how to detect that a new value has been added to the enumeration and is not processed in the switch
From time to time, I want to add a new value to the enumeration type of the project public enum Day { SUNDAY,MONDAY,…… -
Enhanced for loop cannot assign values to arrays (Java)
See the English answer > why Java foreach doesn't change element value? 7 int[] array = new int[5]; for(int i =…… -
Java – why do we call acceptor Accept() instead of visitor Visit() to start visitor?
In Wikipedia sample and GOF books, the use of visitor mode is initiated by calling the accept method on a recipient Bu…… -
Java – why can’t static and default interface methods be synchronized but can be strictfp?
See English answers > what is the reason why "synchronized" is not allowed in Java 8 interface methods? 1 People sa…… -
The PowerShell process hangs when invoked from a Java application
I'm trying to write a simple application that accepts command line arguments (which will be a power shell PS1 file) an…… -
Java – you cannot publish anything on LinkedIn using linkedin-j
First of all, my problem is that I can't post any web updates, share or ID invitations I always get the following exce…… -
Java – how does JCA / JCE and pkcs#11 work together?
I want to use HSM (hardware security module) to create an XML file signature I've done some research, but now I'm a li…… -
Why doesn’t Java 9 simply convert all jars on the classpath to automatic modules?
To understand our categories: >Platform explicit module > Application explicit module > open module > auto……