Java
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Java – duplicate JTable values in rows
I have a JTable filled with a custom datamodel (pasted below). When I call the populate () method, it seems to fill th…… -
Java project path to NetBeans text file
I have the following code to read a text file public static void main(String[] args) { try { Scanner in =…… -
java – Gson. Deserialize an integer to an integer instead of double
I have JSON objects with arbitrary values I want to deserialize it in the map Everything is fine except converting int…… -
Java – call thread Sleep () and * interrupt status * settings?
Java documentation is unclear at this point After calling thread What happens if an interrupt is called on a thread be…… -
Java – how to calculate the intersection between two or more hashsets?
Consider the following code and the fact that four hashsets are populated elsewhere My goal is to include all the elem…… -
Should I manually implement the spring data warehouse method using the Java 8 default method?
When using the new spring data Evans distribution, I'm glad to use some good things to use with Java 8 One is the defa…… -
Java – streaming audio from PC to smartphone?
For Christmas 2016, my father and I want to make a light for our community with lights and music We have light setting…… -
Java – mockito mock object returns null
Hi, I'm trying to implement some tests for my JSF application and mocks. I use mockito (I also use springs) @RunWith(M…… -
Java generic boundary type
Are the following two signatures the same? public static <T> void work(Class<T> type,T instance); and publ…… -
Java – ant: how to compile jars containing source attachments
How to create a jar containing source attachments using ant? Maven did it, but I haven't been vivid since 2003 (well, …… -
Java – if multiple threads are updating the same variable, what should be done to update the variable correctly for each thread?
If multiple threads are updating the same variable, what should I do to update the variable correctly for each thread?…… -
Java – how to inject beans into ApplicationContext before loading from a file?
I have a filesystemxmlapplicationcontext. I want the bean defined in XML as a constructor parameter, a bean that is no…… -
Java expression compilation error
See English answers > why is n + + + n valid while N + + + n is not? one int x=-3; System.out.println(x-----x);…… -
java – Short toHexString
There is a method integer Tohexstring() and long toHexString(). For some reason, they did not implement short toHexStr…… -
Java – save treeviewer state before setinput()
I tried to save the Jface treeviewer extension state to refresh it after calling the setinput () method I tried the se…… -
Java – spring – constructor injects and overrides the parent definition of nested beans
I read the resources for spring 3 in inheriting bean definitions, but I'm confused about what's possible and impossibl…… -
Java – compare and exchange
As the title indicates, I am looking for a comparison and exchange implementation, but it is relatively large: if(newV…… -
Java – how to initialize BigInteger after creating an instance (constructor cannot be called)
Imagine an instance of BigInteger, so how do you initialize it after you create it? For example: BigInteger t = new Bi…… -
Java – interfaces and concrete classes
Below I have a person interface, an implementation class and a driver class, which initializes person with a name and …… -
Java – create a directory, if it does not exist, and then create the files in that directory
The condition is that if a directory exists, you must create files in that specific directory and create a new directo…… -
Using “forbidden” classes in Java?
My employer needs an extension org eclipse. rse. core. subsystems. The Java class of subsystem for eclipse plug - ins …… -
Java – use the super keyword in subclasses to access private fields of superclasses
For coding projects, I have a class that contains nested classes Nested classes subclass in the same external class It…… -
Java – generics and classes >, EnumSet. allOf(class)vs class. getEnumConstants()
I have the following beanvalidation code that works properly and allows you to validate a bean annotation with: @EnumV…… -
Java – jcombobox itemstatechanged event is called twice at a time
@H_ 419_ 2@resultCombo = new JCombo@R_611_2419 @(); resultCombo. addItemListener(new ItemListener() { @Override public…… -
Java annotation values are provided dynamically
I want to provide comments for some values generated by some methods I've tried so far public @interface MyInterface {…… -
Java – passing subclass instances as superclasses using JAXB
I have a set of Java classes representing message types (close to 25) They all inherit the message class that they wan…… -
Java – is it OK to add the default implementation to the method representing the listener’s interface?
A library is used in my project This library has an interface with about 15 methods The purpose of this interface is t…… -
Strange default method behavior with different Java versions
Suppose I have the following class hierarchy: interface Collection<E> { Collection<E> $plus(E element)…… -
Java – annotation processor – how to get the class it is processing
I'm trying to write a custom annotation processor public class AnnotationProcessor extends AbstractProcessor { .....…… -
How do you feel about JavaFX?
I have done a lot of work in ActionScript 3.0, and I also like programming in Java Is JavaFX right for me? What is the…… -
Java – what happens to its iterator when I sort a list?
Suppose I have a list object and an iterator for that list Now I use Java util. Collections. Sort() sorts the list >…… -
java – Thread. Getid() global uniqueness problem
If multiple Java applications are running on the system, each thread ID is unique relative to all other Java threads, ……