Java
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Java – spring websocket sent to specific people
I added custom token based authentication for spring web app and extended the same authentication for spring websocket…… -
Java – use guava cache without load function
My java application has a cache. I want to replace the current cache implementation with guava cache Unfortunately, my…… -
Java – espresso click menu item
I have a menu in the actionbar I created: @Override public boolean onCreateOptionsMenu(Menu menu) { menu.add(Menu…… -
Java – how to perfectly simulate keyevents?
How do you build your own keyevent object when the end user types something, which perfectly (or very closely) matches…… -
Java – does the order in the declaration of multidimensional arrays affect the memory used?
How many bytes do you want to allocate for a and B? import android.graphics.Bitmap; Bitmap[][][] a = new Bitmap[1000]…… -
Java method for saving the current state of the program
Can I save the current state of the Java program and reload it? The plan is rather complicated I just need to be able …… -
MVC Java config – handlerinterceptor does not exclude paths
I have an MVC Java configuration, but handlerinterceptor does not exclude some modes On the line marked XXX, if 1) I a…… -
Collection – give me a multifunctional practical use case
I want to know some actual use cases (it would be better if they had no association / binding with any programming lan…… -
Java – how to use CMU Sphinx 4 for voice and text of English voxforge model
I tried to find out how to use sphinx4 or pocketphinx with the English voxforge model, but I couldn't make it work I'v…… -
Java – streaming or custom jars in Hadoop
I run streaming media jobs on Hadoop (Amazon's EMR) and use mapper and reducer written in Python I want to know if I i…… -
Java – Hadoop – mapper constructor args
Is there any way to provide mapper constructor args in Hadoop? Libraries that may create jobs through some packaging? …… -
Optimize memory usage of string collections in Java
I have a large number of name value pairs (about 100k), and I need to store them in some kind of cache (such as hash m…… -
What is the method size of Java – JIT automatic inlining?
I've heard about JIT auto inlining small methods, such as getters (they have about 5 bytes) What is the boundary? Is t…… -
Java – is there any way to create a shortcut in eclipse and move the cursor to column n of the current row?
I have to follow some strict indentation rules for Java code In many cases, I have to jump to column 26 or 28 of the c…… -
What does this use of Java generics mean?
I want to know that the first < T > represents the following java code line I've read several tutorials on gener…… -
Java video player using JMF
JMF, a multimedia development framework, is awesome. You can develop a video player with a few simple sentences of cod…… -
Concurrentlinkedqueue of Java concurrency collection_ Power node Java college sorting
Introduction to concurrentlinkedqueue Concurrentlinkedqueue is a thread safe queue, which is suitable for "high concur…… -
Thread pool principle of Java concurrency thread pool (1)_ Power node Java college sorting
Introduction to ThreadPoolExecutor ThreadPoolExecutor is a thread pool class. For thread pools, It can be popularly un…… -
Lambda of new features of Java 8 (power node Java College)
Functional interface Functional interface (functional interface is also called functional interface, which is actually…… -
On java object-oriented (class, encapsulation, this, construction method)
Whether object - oriented or process - oriented, these two are just ideas to solve problems, but from different angles…… -
Target type inference of generics in Java 8_ Power node Java college sorting
Simple understanding of generics Generics is a new feature of Java se 1.5. The essence of generics is parameterized ty…… -
Arrayblockingqueue of Java concurrency collection_ Power node Java college sorting
Arrayblockingqueue introduction Arrayblockingqueue is a thread safe bounded blocking queue implemented by array. Threa…… -
Thread pool principle of Java concurrency thread pool (4)_ Power node Java college sorting
Introduction to rejection policy The rejection policy of thread pool refers to the processing measures taken when a ta…… -
On java object-oriented array information processing
Although it is very simple, it should be of great help to some novices who are self-taught and Mengxin who do not unde…… -
Linkedblockingdeque of Java concurrency set_ Power node Java college sorting
Linkedblockingdeque introduction Linkedblockingdeque is a bidirectional concurrent blocking queue implemented by a bid…… -
Condition condition of Java concurrency_ Power node Java college sorting
Condition introduction The function of condition is to control the lock more accurately. The await() method in conditi…… -
Java uses regular expressions to remove redundant zeros after the decimal point
This article illustrates how Java uses regular expressions to remove redundant zeros after the decimal point. Share wi…… -
Fair lock of Java concurrency (2)_ Power node Java college sorting
Release fair lock (based on jdk1.7.0_40) 1. unlock() Unlock() in reentrantlock Implemented in Java, the source code is…… -
In depth analysis of date and time of new features in Java 8_ Power node Java college sorting
Dates are a key part of business logic computing, and any enterprise application needs to deal with time issues. Appli…… -
Concurrentskiplistmap of Java concurrency collection_ Power node Java college sorting
Introduction to concurrentskiplistmap Concurrentskiplistmap is a thread safe and ordered hash table, which is suitable…… -
Atomiclongfieldupdater atomic class of Java concurrency_ Power node Java college sorting
Atomiclongfieldupdater introduction and function list Atomiclongfieldupdater can perform atomic updates on members of …… -
Locksupport for Java concurrency_ Power node Java college sorting
Locksupport introduction Locksupport is the basic thread blocking primitive used to create locks and other synchroniza……