Java
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Java – inline class definition
I've seen several similar examples in Java, and I hope someone can explain what happened It seems strange to me that a…… -
Java – how to monitor c3p0 connections
I used hibernate in the JBoss war and c3p0 for connection pool. They are all in a hibernate in my classpath cfg. Confi…… -
Java – why does a program compile for me, but not for another person?
My code is as follows. It's good for me, but my professor said he was receiving an error because few variables in my c…… -
Java – how do I know if I press shift?
In my game, I hope to use the left and right shift keys for different functions In Java (or another language), is ther…… -
Java – algorithm for generating random numbers of Size X
In my mobile application, I must provide users with a random and unique x alphanumeric code so that users can reply wi…… -
Java – how do I stop the task in the scheduledthreadpoolexecutor once I think it is complete
I have a scheduledthreadpoolexecutor, and I schedule tasks to run at a fixed rate I want the task to run with the spec…… -
Why is there a warning in this Java generic method definition?
I noticed that if I use generic method signature to complete something similar to the return type of common type, it w…… -
Java – mockito: when method A.A is called, then execute B.B
I'm using mockito for JUnit testing class A{ public A(){} public final String a(String x){ return "A…… -
Java Swing animation looks messy How to make it look pro?
Update: semiconplex animation swing timer = trainwreck The ultimate source of the problem is the Java timer, both swin…… -
Java – extract a sequence of bits of any length from the byte [] array
I am looking for the most efficient way to extract a sequence of (unsigned) bits of any length (0 < = length = 16) …… -
Java – detect self crossing in closed Bezier curves
I created a "blob" shape by patching the cubic Bezier curve together (screenshot below) I want to be able to detect th…… -
Java – file extension for serialized objects
What is the most appropriate file extension when saving serializable objects to disk? FileOutputStream fos = null; Obj…… -
java – jNetPcap vs Jpcap
I wonder if anyone can give me some comments thank you! Solution I'm looking for the same thing Only people who encoun…… -
Java – JSON does not contain properties of nested objects
I have the following courses: public class Container { private String name; private Data data; } public class…… -
Java – why does a program compile for me, but not for another person?
My code is as follows. It's good for me, but my professor said he was receiving an error because few variables in my c…… -
Java – Cyrillic characters are not displayed in Jasper Report PDF
I tried to display Ukranian characters as PDF files in Jasper reports But it is not belittled in PDF format When I exp…… -
Java – can I get an enumeration based on the value of its field?
I want to get a specific enumeration based on its field value Enumeration: public enum CrimeCategory { ASBO ("Anti…… -
Java – find override method
In eclipse, what methods can you find now to override method declarations? Scenario: when I view a method in the base …… -
Java – why does type promotion take precedence over varargs of overloaded methods
public class Test public class Test { public static void printValue(int i,int j,int k) { System.out.pr…… -
Is the Java virtual machine language agnostic?
To be sure, the Java virtual machine was originally designed for the Java programming language, but now other develope…… -
Java – use the console to read system. Java for IntelliJ in
I need to open the console and use IntelliJ to enter my homework Is there any way to do this? My code is as follows: p…… -
java – org. hibernate. Persistent objectexception: passing detached entities to persistence – using JPA
I'm creating a simple application that just inserts a row into the table (if the table doesn't exist, create it) using…… -
Java – final static method test
I've been studying for my software development course and got this problem from the example: "Why do you have both sta…… -
Java – a simple GUI toolkit for clojure
The length of this problem is which GUI toolkit creates a very simple UI and is easy to use clojure? Here are further …… -
Java – how to use JAXB to validate XML schema?
I am using XML and JAXB because I ungroup and group XML into Java objects and vice versa Now I try to validate our XML…… -
Java – Google cloud messaging – instant or long received messages
I'm using Google cloud messaging in my last year's college project Everything is going well, but I've been having trou…… -
Java – * and *? In spring @ scheduled (cron = “…”)
I've been looking at the spring boot example to schedule tasks（ https://spring.io/guides/gs/scheduling-tasks/ ）And r…… -
Java – all natural numbers, the sum is n, and the reverse sum is 1
I have a problem to solve N natural numbers are given I need to find a list of natural numbers, sum to a given number,…… -
Javafx-2 – JavaFX, how to freeze the position of some columns in a tableview
The idea is: on a tableview with n columns, the first m column can always be visible even with a horizontal scroll bar…… -
Parallel assignment in Java?
Does java have a python like [a, B, C] = (1,2,3) or PHP list ($a, $B, $C) = array (1,3)? Solution It's not true You ca…… -
Java – GWT superdevmode breakpoint does not work
I'm using IntelliJ. I try to put a breakpoint in a class. Sometimes it works, but sometimes it brings the debugger int……