Java
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Java – where can I get these exercises to solve it?
Recently, I successfully did a Java programming exercise sent by the recruitment company. The problem statement is lik…… -
Java – stateless session bean with instance variables
I have a stateless session bean that contains a public method, several private methods, and some instance level variab…… -
Java – Disable JMX (spring, xbean) in ActiveMQ network
Because I encountered many difficulties in this problem, I released my solution Another problem is that this anomaly c…… -
java – Calendar. Getinstance() and gregoriancalendar The difference between getinstance()
Since I first introduced the replacement date, I have been using the static method calendar GetInstance () to get a ne…… -
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? …… -
Goodbye to Java 8’s new features, permgen_ Power node Java college sorting
Many developers have seen the problem of "Java. Lang. outofmemoryerror: permgen space" in their systems. This is often…… -
Using java to make a simple music player
This paper mainly uses the swing technology in Java and the API in jmfjar to share the specific implementation code of…… -
Method example of realizing single thread communication with java socket
This paper describes the method of realizing single thread communication with java socket. Share with you for your ref…… -
Unfair lock of Java concurrency_ Power node Java college sorting
Obtain unfair lock (based on jdk1.7.0_40) The process of obtaining locks is the same for unfair locks and fair locks; …… -
Copyonwritearrayset of Java concurrency set_ Power node Java college sorting
Copyonwritearrayset introduction It is an unordered set of thread safe, which can be understood as a thread safe HashS…… -
Shared lock and reentrantreadwritelock of Java concurrency_ Power node Java college sorting
Introduction to readwritelock and reentrantreadwritelock Readwritelock, as its name suggests, is a read-write lock. It…… -
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……