Java
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Exception in thread “main” Java security. Invalidkeyexception: illegal key size or default parameter
The following code throws this error message: Exception in thread "main" Java security. Invalidkeyexception: illegal k…… -
Java – Jface tableviewer vs treeview – performance
Has anyone noticed that there is a huge performance difference between treeviewer and tableviewer (treeviewer is much …… -
Event listeners in Java
I've been using the event listener in AS3, but it doesn't seem to be in Java (except graphical components) Amazing The…… -
Generate a range of random even numbers in Java
The posts I read almost explained this problem, but they all use integer values. To be honest, I don't fully understan…… -
Java – parsing anonymous classes does not implement abstract methods
I'm trying to retrieve objects from parse cloud storage from button click events in my main activity, which is from pa…… -
How to recompile and reload java source code when “lein repl” runs?
I have a clojure project and I'm using leiningen I'm also using tools Namespace reloads clojure code when repl is run …… -
Java – can the final method be emulated in powermockito in a non final concrete class?
Suppose I have a non - Final concrete class, and the last method is as follows public class ABC { public final Strin…… -
How to delete records (strings) Java and MySQL
I successfully deleted an integer, but when I tried to change it to string, it would say Here is my code: private void…… -
How do I build Java typed objects at runtime from generic type definitions and runtime type parameters?
Assume universal type declaration (Java) class Foo<T> { public T bar; } At runtime, how do I instantiate a t…… -
Java – how to merge long strings into jlabel
As the title shows: I need to install jlabel into JFrame, but the text in jlabel is too long, so I need to add some li…… -
Java – spring MVC cross domain validation: code smell?
Is this a taste of code or the best way to implement cross field verification in spring forms? @FieldrequiredIf.List({…… -
Java – find out if one circle is inside another
I'm in a bit of trouble. I have a task asking me to find a second circle, whether it overlaps, inside or in the second…… -
Java class type
I have a piece of valid code. I want to ask what happened? Class<?> normalFormClass = null; – - add – – The wild…… -
Java – code complexity analysis tool goes beyond loop complexity
Although loop complexity is a valuable indicator, I tend to think of it as a poor tool for identifying code that is di…… -
Java – how to generate RSA keypair using password encrypted private key?
I want to generate the private key pkcs8 format for key encryption. I try to use this Code: String password = "123456"…… -
Java – operator priority issues cause “error: unexpected type”
Due to many operator priority problems recently, I began to use some code and came up with this: int x = someNumber; i…… -
Java – replace ‘continue’ keyword [closed]
I was browsing the question about the continue keyword to better understand it. I came across this line in this answer…… -
Java and whitespace as syntax (ALA Python)?
Part of the Java syntax incorrectly tells me that these are curly braces and semicolons Is there some kind of translat…… -
How to make soap calls in Java
It should seem simple, but maybe I missed something I just want to make soap calls in Java, and it's best to use only …… -
Does the Java – eclipse debugger support save / restore or checkpoint / rewind?
I mean the following, illustrated by an example: I started my java application (which happens to be a simulator) The a…… -
Java – jsch – invalid private key
I am running JDK 1.7 & Windows 7 using NetBeans 7.2 JSch jsch = new JSch(); Session session = null; try { j…… -
Java – implement ` hashcode() for very simple classes`
I have a very simple class with only one field member (such as string) Implementing hashcode () can simply return fiel…… -
Java – PostgreSQL JDBC table valued parameter
MSSQL has a good function called table - valued parameter It allows you to pass tables of custom data to stored proced…… -
Javafx-2 – JavaFX full screen – resizing elements based on screen size
Is there a way to make the full screen (resize if possible) instead of rearranging everything (in fact, it is rearrang…… -
Java – read the incoming Certificate in Tomcat
I use Tomcat HTTP connector to authenticate with clients If the client starts a new connection to my server and sends …… -
Java eventually blocks and throws exceptions at the method level
In readfilemethod1, IOException is explicitly captured before it is thrown at the method level to ensure that the fina…… -
Java – what namespace does the JDK use to generate a UUID named uuidfrombytes?
The sun / Oracle JDK exposes a function used in Java Create a UUID of type 3 (name based) in the util package: Java ut…… -
comet – socket. IO and Net socket server
Sorry, if this question sounds stupid, but I have to ask it Node written in c# Is there a server-side alternative to J…… -
Java – how to get an inner class to inherit the generic type of the enclosing class?
I'm using java 6 Let my inner class use the same generic class as its closed class At present, I have public class Ter…… -
Java – draw freely on Google maps with your finger
I want to implement a custom module for free drawing on Google maps When it comes to implementation, I find that Googl…… -
Java – add a gridbaglayout in actionlistener
I have a jmenuitem with an actionlistener. In this actionlistener, I want to add a gridbaglayout to my framework (I ma…… -
Java dual epsilon
I currently need an epsilon of type double (constants in the Java library are preferred rather than their own implemen……