Recent Posts
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Any Java way to generate recognition strings similar to Youtube Video strings?
Each video on YouTube has a unique identification string, such as 1cru2fzulec Is there any Java method that can genera…… -
Java – HashSet contains not applicable to integer
I don't understand why inclusion doesn't work (in fact, if I have passed the custom class, I can revisit my hascode an…… -
Can Java – hashcode () dynamically change content?
In my implementation, I have a Class A that overrides equals (object) and hashcode () But I have a small question, tha…… -
Java’s fastest hash function
I have a Boolean string with a length of 128 characters (such as "01100.. 001") (indicating that 128 numbers are 0 / 1…… -
java – debug. Keystore does not exist
I'm trying to generate MD5 fingerprints, but the problem is that every time I try to enter the whole code, I say debug…… -
Java file to binary conversion
How to convert files to binary? I just need it for my project I need to encrypt the file through its binary file Solut…… -
Java – print arrays in random order
See English answers > random shuffling of an array 27 Example: int [] myArray = {5,4,3,2,1}; When printing, the res…… -
Java – simulate spring bean
I have the following courses: public class Plugin { private DistributionManager manager; public void init(){…… -
Java null corresponds to double
I don't know how to raise the question or what title to use I hope I don't break any rules Anyway, can someone explain…… -
Java OO design help – how to abstract a save method?
I have a preference class (module) for several different applications Basically, it is the cache of preferences, so th…… -
How do I use this keyword in static methods in Java?
Is there any way to use this keyword in static methods in Java? I want to display toast messages in static methods in …… -
Null pointer exception of getter setter in Java
I have one named shareddata Getter setter class of Java When I want to hint at it on my code, I get a null pointer exc…… -
Java – try to create a method to check whether the array contains only 1 or 4
static boolean checkNum(int[] array) { static boolean checkNum(int[] array) { boolean bool = true; for (int …… -
Java – mouselistener / keylistener does not work (JPanel)
I'm working on a small project involving the mouse and key listeners in JPanel Unfortunately, when I use the mouse / k…… -
Relationship between Java certificate and keystore
I just used keytool: keytool -genkey -keyalg RSA -alias selfsigned -keystore mykeys.jks -storepass password -validity …… -
Mapping – dozer, instantiationexception on custom converter
I wrote my own customer converter: public class MyFancyCustomConverter extends DozerConverter<Integer,AnObject> …… -
Java invariance, using the “=” operator
The questions about string invariance in java have plenty, in which the author of the problem actually reassigns refer…… -
Java – periodformatter – how to preset 0 if the hour or minute is exactly one digit?
When I use periodformatter PeriodFormatter formatter = new PeriodFormatterBuilder().appendHours() .app…… -
Try connecting to via JDBC – ODBC in Java 8 Classnotfoundexception in accdb file
I am using a java project in the eclipse EE IDE and I have to query Accdb file My code: try{ String filePath =…… -
Java – recursively find the object and return null after finding it
I have created a recursive method to find jcomponents by name This method looks for the correct component, but it retu…… -
Why doesn’t clojure follow the most common indentation style in Java code?
I look at the Java code in clojure I find indentation strange to me I'm used to it http://www.oracle.com/technetwork/j…… -
Java promotes the exact value of N from n to n
I have this simple question Sample input: Enter a 95.123 Enter two 12 Raising the first input to the second input must…… -
What explains Java bytecode
I want to know if Java has been assembled. In my reading, I find that the compiler creates bytecode and runs it on the…… -
Java – pass enum member to constructor: “actual and formal parameter lists are different in length”
I'm confused. I think what I do is very stupid. I just can't see it! Central heating control: Radiator class and radia…… -
Java – this method must override the superclass method
I recently updated my computer to Ubuntu 11.10 64 bit I had a problem importing the project and it gave me an error "O…… -
Java multi “where” keyword?
How to limit 2 generic types in a class definition? How should I "where t:" twice? public class MyClass<T,S> whe…… -
Java documentation – @ return and @ param
I want to know how to use @ return and @ param to record code? I guess I'll do something similar @return(whatever the …… -
Java – simplexml enumerations are case sensitive
I've been trying to create XML using the simplexml Library (v2.6.2) The XML I want to create must save the enumeration…… -
Drag and drop – JavaFX: changes the cursor during drag and drop
I want to change the cursor on my node during drag and drop, but the image does not change I call setCursor () in the …… -
Cloning objects in Java
I'm trying to clone dto I have photographed a dto object, as shown in the figure: public class Employee implements Clo…… -
Java – sharing constants in multiple classes (Android Minesweeper)
I'm using the extended button to create an instance of a class and access integer variables directly for better perfor……