Java
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JavaFX – from list to map using java 8
Is it possible to generate hashmaps using streams and collectors? myList.stream() .map(Label::new) .collect(Collectors…… -
Java – jQuery Ajax error resolution
I'm developing a striped application that uses some jQuery to make the UI more dynamic / usable I set up an error reso…… -
Java – questions about Solr documents, etc
Website: classified advertising website (users can put advertisements, search advertisements, etc.) I plan to use Solr…… -
How should message generators identify themselves in Java?
I have a unified message object queue with multiple producers and one consumer Consumers are publishing information an…… -
Java – can I automatically update hibernate POJOs and mappings in NetBeans after adding a new table?
I already have hibernate mapping files and POJOs created by NetBeans, and I have added named queries and additional me…… -
Java OS X dock menu
Can I add items to the application dock menu? Editor: I think I miss this problem. I don't want to find a way to add a…… -
What methods can be used to return valid and invalid XML data from files in Java?
I have the following data, which should be XML: <?xml version="1.0" encoding="UTF-8"?> <Product> <i…… -
Java – what role does each node play in the linked list?
Why do we need to create a new node p.next for this every time Next allocation null? Isn't it always empty? What is it…… -
Java – VTD XML internal XPath expression
I have an XML file like this <root> <test> <bla>test1</bla> </test> <test> …… -
Java – MIDP limited sockets?
In my opinion, there are some restrictions on socket creation in MIDP In order to isolate any possibility that it is a…… -
Java – how can I use my program to solve these problems? (many problems were explained internally)
This question is not suitable for timid people and takes time I'm learning Java. I want to know if someone can tell me…… -
How to add two matrices in Java
I want to add two matrices with the same number of columns and different numbers of rows, but I want to know how to do…… -
Can the Java – checkstyle module “needbraces” use nested if / else blocks?
We are using checkstyle to enforce our style standards One of the style rules we chose to include is the needbraces mo…… -
Java: double to float type is converted to a larger value to give ‘infinity’
Suppose I have a variable of type double with some random large values: double d = 47867778678678686546746783467347634…… -
Distributed cache with expiration control in Java
The requirement is to cache a large number of (100000 to 1000000) small objects and control the expiration of a single…… -
Java – same day from this year
I need it on the same day this year Example: now it is 2019, and the variable contains the value July 15, 2022, so I n…… -
Java – how to find enumerations of class definitions?
I know that I can get public static members of a class in the following ways: obj. getClass(). getFields() But that di…… -
Java – parses user input about search criteria
I'm looking for a way to parse some user input The input should show which searches must be performed and how they mus…… -
Java – how to divide an ordered list of integers into sub lists of uniform size?
Does anyone have a good algorithm to get an ordered list of integers, that is: In a given number of ordered sublists o…… -
How to use reference methods in unaryoperator Java 8
At present, I have an unaryoperator like this UnaryOperator<Object> defaultParser = obj -> obj; I don't know …… -
Splitting strings in Java streams
I have a POJO product List<Product> list = new ArrayList<>(); list.add(new Product(1,"HP Laptop Speakers",…… -
Java connection pool without JNDI?
I have a connection pool to access MySQL database from servlet I use JNDI to get the data source. JNDI is in my meta-i…… -
Java – authentication fails and a message is displayed using Google’s firebase UI (Code: 10 message: 10)
I made a chat application using firebase real-time database I want to note here: I added SHA1 fingerprint How can I so…… -
Is it feasible for Java to check locking by forcing synchronization twice?
I've read everything about double check locking fixes that will never work. I don't like delayed initialization, but i…… -
Java generalizes methods to validate nulls in object parameters
I'm trying to implement a logic. I have a POJO class with 7 properties The following is the implementation Map<Stri…… -
java – PrintWriter. Printf and printwriter Differences between format methods
Is there any difference between the Java printwriter method printf and the format? The document says printf is a conve…… -
Java 8 streams finds the element and adds it to the beginning of the new list
I wonder if I can use the Java streams line to solve this problem: I need to find a string in the string list and crea…… -
I / O priority in Java
I want to use the vista feature of I / O prioritization Is there a platform independent way to set the I / O priority …… -
Java – why call a method call that takes a parent class as a parameter instead of a method that takes a child class as a parameter?
I have a class named a and a class named B, which extends a public class Main { public static void main(String[] a…… -
How does Java – class object relationships work?
What happens when we create an instance of a class? I mean, every field and method of the class will be inside the obj…… -
Java – how to copy “show tables” in Hibernate?
I'm trying to iterate over all my tables, so I can truncate each table (at the beginning of each jbehave test) I thoug…… -
Java – Generic ChangeListener
Scenario: I have a container object that contains a mixed object package. All objects inherit from the mycontainerdobj……