包含标签：Java 的文章
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Java – a concurrent collection that maintains the insertion order
I am looking for a concurrent list that can maintain the insertion order Does anyone have some good recommendations? I…… -
Java files: suppress hard coded text warnings?
Because I have to add a separator in textview (e.g., ",...), I will receive a hard coded text warning (don't conceptua…… -
Java – how do I detect if the MIME type is an executable?
I am using Apache Tika to detect the MIME type of the input stream http://www.file-extensions.org/filetype/extension/n…… -
Java – onclicklistener (Android studio) in the check box
This is part of my code, including Check@R_521_2419 @( Chck@R_521_2419 @No)： final Check@R_521_2419@ Chck@R_521_2419@…… -
Java – outofmemoryerror: compress class space
I received this error: "java.lang.OutOfMemoryError: Compressed class space" Until I figure out what trigger it is, I t…… -
Multithreading – Delphi pointer and memory release
I am using custom windows messages to exchange information from the worker thread to the form in the main VCL thread W…… -
Java – assertj asserts on the cause message
Is there any way to throw a method again when using assertj to check whether the message in the reason is equal to a s…… -
Java – when an object is an instance of a base class, call the correct method for the object
I have the following examples in Java: public abstract class Vehicle { private final String name; private fina…… -
Why doesn’t Java allow you to create instances of inner classes?
See English answers > 25 Java inner classes and static nested classes public class m { String n="n"; static Str…… -
Java – HashMap can only be copied through hashcode()
See English answers > Why do I need to override the equals and hashcode methods in Java? 28 Therefore, whether K is…… -
Java – unable to parse the import org. Org springframework. test. context. junit4. SpringRunner
I'm trying to solve this problem from now on But I still haven't solved it I just got out of spring IO downloads a spr…… -
Java – Android spinner has a different background for each line
I know this topic has been solved many times. I have found several such problems, but I can't meet my needs I want a l…… -
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Java – starts the enumeration as a value
I want to declare enumeration variables as values How can I do this? For example: public enum CardSuit { SPADE(0),H…… -
jsf-2 – javax. faces. Facesexception: public key for catpcha not found
I want to implement the verification code in my application, but I get this error. Can someone tell me the reason? Sol…… -
Java – sorted concurrentmodification exception
I wrote this applet to sort arrays According to my understanding, it should print 0,1,2 However, when I run this progr…… -
Java generics – a comparable interface
In the following code, the comparable interface is used to ensure that X and y should have the same reference type, bu…… -
Accessing private variables through static methods in Java
Suppose I have the following Java classes: public class A { private int x; public A(int x){ this.x…… -
What protocol does java socket use?
I started using the socket and socketserver classes in Java As mentioned above, I want to know which protocol (or what…… -
What is the reason behind dynamic method parsing in statically typed languages like Java
I'm a little confused about Java's concepts of dynamic / static types and dynamic method parsing consider: public clas…… -
Java – Apache ignite node failed: unable to read magic header
The Apache ignite server deployed on both computers will shut down automatically There is no specific clue in the log …… -
Java – where to place the properties file in eclipse and how to access the path locally and on the server
I see some similar questions here, but I don't know much about them, so I want to ask questions and customize them in …… -
Merge the two lists into a “two-dimensional” list in Java
See English answers > clearest way to combine two lists into a map (Java)? 15 @ h_ 502_ 7@ I have two lists: Names=…… -
Java – creates a map from a list, where the key is part of the internal and external objects
Is it possible (in a simple way) to change it to java8 stream? (please don't comment / answer, if you want to tell me …… -
Java – read semicolon delimited CSV
I have the following code block, which uses opencsv to read CSV files and store column 7 The problem I face is that I …… -
Java – synchronization block within synchronization block
Can I include a synchronization block in another object to synchronize another object? Example: synchronized(myObjetc1…… -
Java – does it still make sense to avoid creating objects for garbage collection?
For example, in a service adapter, you might: One There is an input data model and an output data model, which may eve…… -
Java – which file is read when you run “. / gradlew” on the command line?
I did some digging, but I didn't find much information My best guess is build Gradle files are the default, but I'm cu…… -
Java – directly from completable future Thenaccept return value
I tried to return a list from completable future as follows: public List<Provider> get() { CompletableFuture…… -
Think in Java version 4 – what is classname this. method()
Reading "thinking in Java 4th Edition", I found this example in Chapter 14: public class CoffeeGenerator implements Ge…… -
Java – unable to create a new session Error in appium code
Unable to create new session (original error: a new session is requested, but one of them is in progress) this error i…… -
Java – thread safe denies atomicboolean get() as a condition in the while loop
Suppose I have the following code: AtomicBoolean condition; condition = new AtomicBoolean(false); (...) while(!conditi……