Java
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Declare a byte array in Java
How to declare a finite byte array? That's what I'm thinking, but it doesn't work. I can't find anything private Integ…… -
Java – how to put scanner input into an array… For example, several numbers
Scanner scan = new Scanner(system.in); Scanner scan = new Scanner(system.in); double numbers = scan.nextDouble(); doub…… -
Java – JPS does not display Tomcat processes
I run Tomcat 6.0 on Ubuntu 10.10 31, and use tge sun JDK (java-6-sun) Although Tomcat is running, when I run JPS (Java…… -
java. Lang.illegalaccesserror: attempt to access field concreteentity. From class entity instance
OK, so here's the deal I'm trying to access concreteentity Instance, which is the default field of the access type exi…… -
Java – Jersey 2.7 has problems running on Apache Tomcat 7.0
I am using Apache Tomcat 7.0 and eclipse to create a sweatshirt application import javax.ws.rs.GET; import javax.ws.rs…… -
Java – how to convert an 18 Bit numeric string to BigInteger?
Someone can help me convert an 18 digit string number into BigInteger in Java Namely; The string "0x999999999999999999…… -
Java – cannot catch constraintviolationexception
I can't seem to catch the constraint violation exception, but I see it in the log entity @Column(unique = true) privat…… -
Java: interface vs abstract class (about fields)
From the content I collected, I want to force a class to use specific private fields (and methods). I need an abstract…… -
Java – using Apache velocity and spring framework 3.2 four
I'm new to spring. I want to use velocity to set it up Therefore, I created a new spring project, a new spring MVC pro…… -
Java – this: cannot be used in a static context
Can you help me with the following code? The error is: "cannot be used in static context" public class Sample2 { /…… -
Java – eclipse command line parameters
I know how to run my application using the run configuration menu and command line parameters My problem is that wheth…… -
Solution to the problem of Chinese garbled code in Java compressed zip file
Usually, after using java to package files to generate compressed files, there are two places where there will be garb…… -
Java – record JSON requests and responses for JSON
I have a Java Web application that exposes restful APIs My requirement is to record all JSON requests and responses pr…… -
Object oriented programming: abstract data types in Java
In this article, we will examine data types in Java, but we will introduce the concept of abstract data types (ADT). W…… -
Learn game design of Java swing from me (2)
Remember the minicooper who shuttles through the traffic of Hollywood like an elf in stealing the day? Mark Walberg an…… -
Java – multithreading – multiple users
When a single user accesses an application, multiple threads can be used. If there are multiple cores, they can run in…… -
Self modifying code in Java
Have you ever created or encountered self modifying code in Java? Solution Ignore the sad world, you may pass the self…… -
Java – libgdx: read from JSON file to ArrayList
I need help reading the JSON file to ArrayList I have JSON files: [ { "name": "Wall","symbol": "#",},{ …… -
. Net – multithreaded self managed WCF service
It seems that WCF uses only one thread when using self - hosting I want to use multiple threads or some kind of thread…… -
Java – sets the button height and width to wrap the contents and populate the parent
I'm developing an application where users should be able to change the appearance of buttons by pressing other buttons…… -
Java online book Mall (9) payment module
This example shares the specific code of the payment module of java online mall for your reference. The specific conte…… -
Eclipse failed to load javahl library solution
Eclipse failed to load javahl library solution Today, when you open eclipse, a window pops up saying failed to load ja…… -
Can I build result sets from files in Java?
I don't have much experience in using result sets, but since resultset is an interface, I think I can implement it to …… -
Java – Jersey ‘nocontent’ response returns 200 instead of 204
I'm using Jersey (1.18) to build a rest API for my web application In part of my code, I have the following code snipp…… -
Java – log forging enhanced repair
I'm using fortify SCA to find security issues in my application (as a college assignment) I encountered some "log forg…… -
Java – why do I get Maven error: “unable to determine whether resource x exists in http://maven.glassfish.org/content/groups/glassfish ”？
Whenever we execute our website target in maven, we get a long list of dependency related errors in the console log Th…… -
How do I use wkhtmltopdf in Java Web applications?
I'm a wkhtmltopdf novice I want to know how to use wkhtmltopdf with my dynamic web projects in eclipse? How do I integ…… -
Java – how to enforce a method in a subclass without using abstraction?
I want to force subclasses to implement an implementation method of my mother class public class myMotherClass { …… -
McCabe cyclomatic complexity for switching in Java
I use the switch statement for 13 cases, and each case has only one line of return value McCabe daubed it in red Is th…… -
The Java – c3p0 connection pool did not close the connection
I have one using c3p0 0.9 1.2,hibernate 3.2. 1. GA and spring 2.5 5. The problem is that the database connection is no…… -
Why do lambda expressions in Java 8 need to use variables to use the “final” modifier instead of using method references?
Consider the following courses: class Foo<T> { void handle(T t) { System.out.println("handling " + …… -
Java – how do I get the JRE / JDK that matches the source?
I want to get at least one JRE / JDK level on my windows machine. My JRE / JDK source matches the exact level of JRE /……