Java
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Java – displays a list of strings in Android
I started developing for Android yesterday, so I'm a complete novice I try to use listview, but I can't even see the v…… -
In R, the character vector is divided according to specific characters; Save the 3rd piece in the new vector
I have a 'AAA'_ 9999_ Data vector in the form of 1 ', in which the first part is alpha location code, the second part …… -
Java – requires a visually pleasing UML diagram tool
I've been looking for different tools to create UML diagrams for my java applications My professor uses omnigraffle, b…… -
Java. Jar when running Java – jar lang.ClassNotFoundException
I'm using ant to build my build XML file, which is compiled, but when the generated jar is run through "Java - jar my_…… -
Java – when to merge code duplicates
We use the code static analysis tool (sonar) to detect duplicate code in the project It seems that there are many repe…… -
ORM – laravel 4: eager to load
I have a table called userwords with a word in it_ ID column, which I want to use to get rows from the words table and…… -
Java – jtextpane prevents scrolling in the parent JScrollPane
I have the following "tree" objects: JPanel JScrollPane JPanel JPanel JScrollP…… -
Support covariant type conversion in Java
The Java type system only supports immutable types So list < string > is not list < Object > The list <…… -
Java – Destroy () or finalize () is called first in the servlet?
In servlet, call destroy () before or after finalize (). Solution First call destroy() Servlet container will call des…… -
Java – how to implement some if then logic using JSF and facelets?
I have a bean with live state Depending on the status value, different CSS classes should be applied to render it So I…… -
Java – swing: pass values back to the UI from a predetermined thread
I have a java system tray UI and need a scheduled database polling What is the best way to generate a new thread and n…… -
How to include the text of a file in Java code?
It seems that Java is not what I used to do in C (there's no big surprise) I have a set of rules generated from anothe…… -
Java – can Maven re sign dependencies?
I'm using maven jarsigner plugin to sign my shadow super can I really need to distribute some dependencies in my jars …… -
Java – how to set the correct last modified header value for spring Web Services cached using spring cache?
I have a spring MVC controller: @Controller @RequestMapping(value = "/user") public class UserController { ..... …… -
Is there a “noreturn” keyword in Java
Sometimes I want to write an error () function, which will eventually call system Exit(), which means that this functi…… -
Java – send commands between two computers over the Internet
I want to use any computer connected to the Internet at home to control my computer (and the USB device connected to t…… -
Java – get POM. From commandline XML attribute
I am currently writing a script for our gitlab Ci, which will automatically upload files to the nfsshare folder on the…… -
Java – detect jdialog resizing
How do I detect when jdialog resizes? (windowlistener was my guess, but there seems to be no resized event handler.) S…… -
Java – what’s the difference between wrapping alfresco extensions as AMP and jar?
I want to understand the consequences of packaging alfresco extensions as jars rather than as amps I'm building alfesc…… -
Java parentheses flip string
How do I replace a string so that "(" becomes ")" and ")" becomes "("? Solution use. Replace (), but if you replace) (…… -
Java – how to change the JFrame content to the corresponding click?
I am using java to develop a simple desktop application There is a menu bar. When the user clicks menu item 1, the con…… -
How to disable all network connections in Java
Is there any way to run Java VM (Java. Exe) on Windows Server 2008 and disable all network connections using command l…… -
Java – J2EE: Singleton vs saving things in a session
When should I keep an object (that is, an application wide property file) in the session instead of creating a singlet…… -
Java – how to find the maximum value in a binary tree
I have to complete the method maxelem (node) in this way, and the method maxelem () returns the maximum value containe…… -
Java – retrieves the number of types in the list
I have a list The list can contain multiple items of the same enumeration type Let's say I have an enumeration: toy is…… -
How do I create a copy of the data type I created in Java?
If I have a class: public class MyType { private List<Integer> data; private boolean someFlag; …… -
Java – Eclipse: some or all of the projects cannot be imported because they already exist in the workspace
Sorry, I know I often ask this question But the non scene suits my problem I use eclipse in Git (in win7) In the GIT b…… -
In Java, can I use conditional expressions to “select” reference types?
Can I use conditional expressions to "select" reference types, as shown below? ??? = isTrue() ? Integer : Double; What…… -
Convert CIDR notation to IP range in Java
See the English answer > converting CIDR address to subnet mask and network address 11 For example, for CIDR 192.16…… -
Java – how to use spring roo to create @ entity without @ version field?
I use spring roo and JPA (hibernate) as my entity model I don't want to have a @ version field in some entities How ca…… -
Java eclipse Maven version control
Which of the following files should be versioned? Why? >Class files compiled from source code. > Other files gen…… -
Destroy objects in Java
If I set a null object, will Java destroy the original object? For example: Foo f = new Foo(); // ... Foo b = f; If I ……