Recent Posts
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Why is the class size compiled by Java 6 larger than that of Java 5?
We notice that when we compile our classes on Java 6, they are always larger than Java 5 I understand that bytecode ha…… -
javafx – TornadoFX filechooser
I'm looking for a solution for JavaFX filechooser (in kotlin) I insist on this. I can't pass root view because window!…… -
Get the enumeration value as a string list in Java 8
Is there a Java 8 method or a simple method that returns the enumeration value as a string list, such as: List<Stri…… -
Java – fix binary search errors from Bentley’s book (programming pearl: writing the right program)
Binary search can be implemented in many ways - recursion, iteration, condition, etc I got this result from Bentley's …… -
Remove duplicates from strings in Java
I tried to traverse a string to remove duplicate characters For example, string aabbccdef should become ABCD EF and st…… -
Java – returns the JSON representation of a string with Jersey
I'm about to set up a rest - Web service with Jersey @GET @Path("user") @Produces( MediaType.APPLICATION_JSON) public …… -
Java – a custom JPA repository method published by spring data rest
I'm already here http://docs.spring.io/spring-data/data-jpa/docs/1.0.x/reference/html/#repositories.custom -Implementa…… -
JPA independent custom type mapping / javax persistence. X replaces org hibernate. annotations. Type and org hibernate. annotations. TypeDef
I have a table gamecycle in a database, which contains a column date of type number The value in this column is 8 digi…… -
Java – interpret scientific symbols as int or float?
If I use scientific symbols (such as 1e9) to encode a number in my code, the type of the number will be (int, long, fl…… -
Java – in Google Maps V2… Fragment Getmap() returns null
I can't get the map! All I can get is null Here is the code public class MainActivity extends FragmentActivity { …… -
Java – handshake failure – supernatural closing error when debugging Solr in Intellij
So I'm going to debug my Solr filter plug-in on IntelliJ Community Edition Then I run the program from the comand prom…… -
Java – stop horizontal scrolling in jtextarea
I want to add a jtextarea to an application Typically, textarea contains a lot of content and displays horizontal and …… -
Java – disable WebView links to run on emulators, but not on devices
I want to disable links to the pages I load into WebView objects My code runs perfectly on my simulator using API 25, …… -
Java – deserialization error handling
My question is simple: I have the following simple classes: public class Foo { private int id = -1; public void …… -
Java – Maven incremental build
We currently have a large Maven 2 project, which is a collection of many separate projects with complex dependencies, …… -
Java large decimal format exception
Why does the following code throw a Java number format exception? BigDecimal d = new BigDecimal("10934,375"); Solution…… -
Automatic properties documentation for Java applications
Is there a "Javadoc like" tool to configure properties in Java applications? I am currently using a Java application t…… -
What is Java’s dynamic proxies Net equivalent?
In Java, dynamic proxy can be used to dynamically implement the interface, as shown below: public static <T> T c…… -
Accessing jruby script top-level environment variables from Java
j ruby 1.7. 23 (1.9.3p551) 2015-11-24 Java hotspot (TM) 1.7 on 64 bit server virtual machine 0_ 79-b15 jit [Windows 7-…… -
The equivalent function of Arduino map in Java
Is there a function similar to the map function of Arduino for Java? I need to map a series of values to another value…… -
Java – a tool for generating graphical data for class dependencies
Are there any tools that can analyze java source files, build graphics from them, and provide graphics data in some st…… -
Import statement order in Java [closed]
wonder. What is the correct way to import statements? Is there more readability? Yes, >External classes (such as Ja…… -
Java – implementation instances in interfaces
In my project, I need to create objects for each Java math operator, such as "add", "substitution", "multiplication", …… -
Object oriented concept in Java
I've been using java for a long time. For a long time, I'm using GWT (Google Web Toolkit) for web development Its adva…… -
Java – a better way to design this algorithm?
I'm working on a more complex version (the vehicle moves in X and Y directions) I did this example to get a better way…… -
Null pointer exception when using java compiler API
MyClass. java： package test; public class MyClass { public void myMethod(){ System.out.println("My Method……