Java
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Array – Java ArrayList to kotlin array
Is there an easy way to convert a Java ArrayList into a kotlin array? The following codes: fun test(): Array<String…… -
Oracle Text criteria query in JPA
Can I execute JPA criteria query using the contains statement of Oracle Text? If so, how? Solution Doubt API exists in…… -
. Net – why do we need iequalitycomparer, iequalitycomparer interface?
The 'equal' and 'GetHashCode' methods exist in the object class, and our type inherits the object base class If we rew…… -
Automatic printing does not work in Java
I have asked to print PDF files in two different ways - one through the web page, the user will see the print preview,…… -
Java – use enumeration values instead of enumeration class names
I use static enumeration in the interface and want to use it in the extension class I have the following interfaces: p…… -
Java – JPA hibernate – loop in entity relationship – cascade strategy
I have a group of entities connected to each other to form a cycle, that is, the parent entity P has two one to many r…… -
Java – basic histogram in JfreeChart
I need to create a simple histogram using JfreeChart There should be 3 sets of numeric values assigned to these groups…… -
Java – a way to reduce memory loss
background I have a spring batch program that reads the file (the size of the sample file I'm using is 4 GB), processe…… -
The Java – wicket check box automatically submits its changed value to the domain object
What is the cleanest way I can make a check box automatically submit the form it belongs to in wicket? I don't want to…… -
Java casting order
Suppose I have the following settings class A { B foo(); } class C extends B { } // later A a = new A(); C theF…… -
Serializing private variables in Java
I have a problem If my class has private variables without getters and setters, the serialization API will read the va…… -
Java – modify methods using annotations
How to change methods in Java and what are they doing? I mean, I tried to use comments to do the following code @Anno1…… -
What is the built-in function to find the next maximum prime in Java?
Does the Java API provide a function to calculate the next maximum prime given the input x? Solution This will be a ve…… -
Distinguish between single click and double click in Java
I searched the forum and saw this Code: public void mouseClicked(MouseEvent e) { if (e.getClickCount() == …… -
Java – how to set null to integer in spring context
This is only a small part of my background: <property name="a" value="1"/> where a is Integer. How do I set null…… -
java. time：DateTimeParseException for date“20150901023302166”
See English answer > is Java time failing to parse fraction-of-second? two LocalDateTime.parse("20150901023302166",…… -
Java – how to deserialize JSON arrays using gson
I want to use gson to deserialize a JSON array I tried to do it, but I couldn't JSON array: [ {"ID":1,"Title":"Lio…… -
Java – processing the file name * parameter with spaces through RFC 5987, resulting in “in the file name”
I have some legacy code I'm working on (so I can't just use the URL with the encoded file name component), allowing us…… -
Can Java applets use printers?
Java applet can easily print text / HTML to standard printer drivers (all common platforms win / MAC / Linux)? Do you …… -
Java – makes the quartz scheduler persistent without JDBC
We are building an application about mongodb and need to run cron like jobs regularly When the project is based on RDB…… -
Java – can spring cloud and ribbon perform DNS based load balancing?
Cloudfoundry plans to add support for DNS a records mapped to multiple IPS (one for each application container instanc…… -
Java – confusion between syncadapter, service, loader, provider and asynctask?
I'm a novice on Android. I'm reading documents and some tutorials@ H_ 419_ 2 @ service Solution Kaleb's answer has sev…… -
Java – how to create a signature using hmacsha1 and a key to connect to the Kayako API
I'm trying to connect to a third-party application API using Apache commons HTTP client The API I'm trying to connect …… -
How to create custom Java annotations to record method parameters
I'm writing a Java EE application. I want to use and create custom annotations, which will record data when calling an…… -
rx-java – rx. exceptions. Onerrornotimplementedexception how to avoid this error – it crashes my application
com. myapp. test. debug E / MessageQueue-JNI：rx. exceptions. OnErrorNotImplementedException Some questions... Why has…… -
How do I determine the namespace that needs to be imported from the Java library?
I'm writing some clojure code, and I rely on joda time to handle time The problem is that I don't know what to import,…… -
Java: at org w3c. Get the XPath of the element in the DOM document
I wrote down what I wanted to achieve However, the getelementidx () function does not return the correct count There i…… -
Unfortunate Java exception: Java lang.NoSuchMethodError
I wrote an application that worked for 3 years, but! INFO | jvm 1 | 2013/04/17 10:02:40 | Exception in thread "Th…… -
Java – spring web service process
I am a novice in learning network services. After writing an example program for a factorial service, I have some doub…… -
Java intersect, union, join, different lists with predicates
Hello, I have 2 lists containing the same objects I want to do anything by using predicates, such as intersect, union,…… -
Java – Maven 3 does not update snapshot dependencies from the local repository
I'm trying to use external libraries in my Maven project Since I want the project out of the box on any machine, I don…… -
Is java ArrayList really much slower than C vectors?
I don't want to start another meaningless flame war about whether Java or C is a better language I want to know whethe……