Java
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Java – how to use polynomials instead of bits to improve performance?
I have a 128 bit string, and my supervisor asked me to express the 128 bits as polynomials This is a scan of the paper…… -
Java – use Jackson to map objects from specific nodes in the JSON tree
Can Jackson's objectmapper ungroup from a specific node (and "down") in the JSON tree? Use cases are extensible docume…… -
How to convert ieee-11073 16 bit sfloat to a simple floating point number in Java?
The title is self-evident: how to convert ieee-11073 16 bit sfloat to a simple floating point number in Java? Solution…… -
Draw lines on the canvas with the mouse: Java AWT
The attempt is to draw a figure (now a line) with the mouse on the AWT canvas I tried java graphics for the first time…… -
java – joda-time:new DateTime(String)vs DateTime. parse(String)
Using the joda-time-2.0 version library, I want to know which function is more suitable for building from ISO date (up…… -
Java – badtokenexception: cannot add window
I have a problem. When the screen times out, I receive a badtokenexception, and then the user returns to my applicatio…… -
Multithreading – avoiding cache consistency problems and key parts in Delphi?
I just read an MSDN article "synchronization and multiprocessor issues", which solves the memory cache consistency pro…… -
JavaFX tableview resizes to fit the window
I'm trying JavaFX and forcing my way because it's hypothetical and future I'm trying to create a 4 - column table The …… -
Java – using paint Setstrokejoin() and paint setStrokeMiter()
I am curious about what these methods do and how to use them, because there seems to be no detail except the single se…… -
Java – you cannot avoid using spring boot and logback to log SQL into the console
Solution If hibernate show_ If SQL is set to true, hibernate will simply print the SQL statement to the console (do no…… -
Java: XML normalization
What is the simplest way to make the canonical form of XML files in Java? Do you have some complete code? I have found…… -
Java – display HTML5 in swing
There are many questions about displaying HTML content in swing applications But no library supports HTML5 (I can't af…… -
Subdivision objects in Java
I have a huge object. Of course I have its class. I extract some values from it, but because it's really big, I don't …… -
Java – how to set the context path in Tomcat so that you can enter the site without attaching the deployed folder name?
I read some questions about this in the Tomcat guide here I think I do almost the same thing But to some extent, it ca…… -
Java – the background color of the selected item in the non editable jcombobox
Non editable JCombo@R_382_2419 @The background color selected in is a blue color: Is there any way to make it a differ…… -
Java – how to reduce the “cyclomatic complexity” of the following code
I want to know how to reduce the cyclomatic complexity of the following code, if this is something I should worry abou…… -
In Java, when is the constructor of an enumeration constant called?
To use a creative example in Java, here is the code: enum Commands{ Save("S"); File("F"); private String sho…… -
Files. Parallel version of walkfiletree (Java or Scala)
Does anyone know java files Any parallel equivalent of walkfiletree or something like that? It can be a Java or Scala …… -
Java – why doesn’t Jackson 2 recognize the first capital letter if the leading camel case word is only one letter long?
I am using spring 4 MVC with Jackson 2 my service For one of the operations, I have a request object with an attribute…… -
java – Collections. synchronizedMap(new LinkedHashMap()); Map thread is not made safe
I am using the following construct to create a thread safe map Collections.synchronizedMap(new LinkedHashMap()); Altho…… -
Java – what is the difference between atomicreference and synchronized?
What is the difference between atomicreference and synchronized? public class Internet { AtomicReference<String…… -
Java – spring Mongo adds standard operator and dynamic
I'm trying to create a dynamic query using user input and actions List<Criteria> criterias = new ArrayList<Cr…… -
Compress the byte array in Java and decompress it in C
I currently have the following arrays in my java program, byte[] data = new byte[800]; I want to compress it before se…… -
. Net – LINQ on LinkedList – iterates linkedlistnode instead of T
I'm having trouble understanding how to perform certain operations in LINQ I have a linked list. The type of object do…… -
Java – binary compatibility of abstract classes and subclasses
In Java, I define an abstract class, which contains concrete and abstract methods, and must be independently created b…… -
Java – size of serialized null values
I have to send a complex object over the network. These references are almost null, but I want to know the size of the…… -
Java convert converts string to int when using BufferedReader
How to convert string to int when using BufferedReader? System.out.println("input a number"); int n=Integer.parseInt(…… -
Java – dispatcher servlet spring and URL patterns
I'm new to the spring framework. Today I met web For the dispatcher servlet configuration in the XML file, I came up w…… -
Java – XPath normalize space() returns a series of normalized strings
I need to use the XPath function normalized space () to normalize the text I want to extract from the X HTML document:…… -
Java – I can deploy my on the nginx server war
I really like the stability and way of nginx And I really like Tomcat's Java and user-friendly Is there any way to dep…… -
Get heap dumps from remote applications in Java using jvisualvm
I run jvisualvm (Windows XP, Sun Java 1.6.0.13, 32-bit client VM) to monitor remote applications (Linux, Sun Java 1.6.……