包含标签：Java 的文章
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Java – a thread pool that handles “duplicate” tasks
I want to perform some different tasks in parallel, but there is a concept that if a task has been queued or is being …… -
How to use a loop to delete elements from a queue in Java
I have such a data structure: I'm trying to do this: for(Mail mail: mail@R_476_2419@) { if(badNews(mail)) { …… -
Java streams | groupingby the same element
I have a stream of words that I want to sort according to the appearance of the same elements (= words) For example: {…… -
Java – how to disable the @ scheduled method through the properties file?
I have a spring reservation method that runs regularly: @Scheduled(cron = "${spring.cron.expression}") public void dem…… -
Java – how does ehcache check whether there is something in the cache?
Is there any way to check whether the object is in the ehcache managed cache? My challenge is that I have implemented …… -
Why does Java ArrayLists not shrink automatically
A long time ago, I watched a video lecture on coursera MOOC: introduction to Algorithms in Princeton. You can find her…… -
Java – how do I get type values from genericrecord?
I'm using Avro. I have a genericrecord I want to extract ClientID, devicename, holder In Avro schema, ClientID is inte…… -
Java – exclude Tomcat dependencies from spring boot in gradle
I'm using @ L_ 419_ 0 @ boot and jetty, I can't seem to exclude all Tomcat dependencies in the gradle build file build…… -
How do I identify and fill the contours I shape in javacv?
I'm developing a project on javacv. I need to know how to recognize the following image and fill it with specific colo…… -
java – GWT. Delete anchor part URL
Hi, I'm using GWT and its standard way to support history through the history course It's very convenient, but how to …… -
Java – read barcode when program has no focus?
I want to write a simple program to read bar code, write down bar code and scanning time Unfortunately, I can't guaran…… -
How to quickly search for strings in large files in Java?
I'm trying to search a large text file (400MB) for a specific string using the following: File file = new File("fileNa…… -
java – Arrays. The fill() method caused an exception
Now I can't fill the array with spaces Whenever I use the array fill method, I encounter exceptions Now I've eliminate…… -
Java – JSF custom converter without calling null value
I'm outputting Java math. BigDecimal creates a custom converter When BigDecimal is 0.00 or null, I want to output dash…… -
Java garbage collection in the dialog box
*When I try to create a button in JFrame, I now encounter a very strange Java GC problem. When I click the button, it …… -
Java – log4j configuration file error detection
I am writing a recorder using log4j Once I load log4j Properties or log4j XML file, I wonder if there is a way to chec…… -
Java – there is no setter method in the interface
I have a concrete class a that implements interface B B ref = new A(); code: public interface B{ public abstract Str…… -
Java – completing an activity from another class
I'm developing an application that requires a permanent Internet connection If there is no Internet connection, I want…… -
Java – listener for session expiration in spring
I am new to spring and use it for authentication One problem I face is that when the browser closes or encounters any …… -
Java – runtime errors in JUnit testing
I'm very unstable about unit testing, but I have part of the code, and I really need to make sure it's consistent I tr…… -
JUnit – the parameter list given by cobertura is too long
I'm trying to generate code coverage reports using the cobertura plugin I'm in POM This dependency exists in XML <p…… -
How do I protect my java web application?
I have a web application that when users log in, they arrive at mainjsp JSP page In this page, there are few date text…… -
Java – simulate P2P network traffic on a computer
What is the best way to simulate a network in Java? I am in the early stage of the network peer-to-peer project and ha…… -
Java: regular expressions escaping regular expressions
This sample data is returned by the web service I want to split them with split (",") and try to see the results with …… -
Java – how to rename methods programmatically using JDT
My goal is to programmatically call refactor > > to rename eclipse commands for methods in Java source files Ren…… -
Java 7 can’t work with chef installation
I have a packaged recipe with a recipe, recipe / default RB, which reads the following: include_recipe "apt" node.ove…… -
Extracting cursor image with Java
I wonder if there is a way to extract image objects from cursor objects in Java For example: for this purpose: Image i…… -
Java – generic method call
I have this code from "Java - Beginner's Guide - Schildt", Chapter 13: package com.chapter.thirteen; public class Gen…… -
. Net – thread stack and stack
How to generate new threads, i.e. memory heap, how memory stack is related to threads, and how to allocate memory? I k…… -
Java – what is netbean lookup?
It's hard for me to understand that Basically, this lookup API is used to maintain the loosely coupled nature between …… -
Java – you can write generic xmladapters
I know that I can use raw type to write XML adapter, but I can use generic type I tried to read the API, but I didn't …… -
Java – use Proguard to confuse actionbarsherlock
I'm trying to blur my Android application with Proguard and ant (eclipse Proguard never works, always fails, error 1) ……