包含标签：Java 的文章
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Java – APK extension file – application license – developer account – not_ Licensed response
I'm trying to use the APK file extension for Android APKExpansionPolicy aep = new APKExpansionPolicy(mContext,new AESO…… -
Java – statet in eclipse and R
I've managed to install statet into eclipse. I have a java project called "test" with some code I hope to be able to T…… -
Using guava and GWT
Someone can tell me what needs to be done to enable guava support in GWT I have downloaded guava R07, where there are …… -
Java streams: grouping lists into maps
How do I use Java streams to do the following? Suppose I have the following classes: class Foo { Bar b; } class B…… -
Java – transform and parse JSON
I'm using retrofit with Jackson For some reason, I cannot resolve the following JSON: [ { "ProfileImage": …… -
Java – log4j is recorded twice in different formats
I don't know why log4j is attached twice in different formats Has anyone met before? This is my log4j XML file: <lo…… -
How to use java to access spreadsheets in open document format (. ODS)?
I want to read, write and create spreadsheets in Java open document format And I want the generated Java program to ru…… -
Java – policy design pattern – select policies and counters
I'm programming in Java, but this is a more design question, so any OO programmer can answer this question I have a qu…… -
We can reject serialized Java objects instead of giving the transient keyword
We can avoid serializing fields by using the transient keyword Solution http://java.sun.com/javase/6/docs/platform/ser…… -
Java – mybatis column mapping
I use mybatis 3.0 3 and there is a problem: some columns in the database have underlined names, which should be mapped…… -
Java – call stream() Reduce () in the list has only one element
I am a new function programmer of Java and want to know how I should write code to avoid NPE (for example): myList.str…… -
What is the best way to transfer files using Java?
I'm writing a code to upload files from the client to my server, and the performance is not as fast as I think I am no…… -
Java – static variables that span multiple different subclasses – corrected
I want to know that if I define a basic activity object, all my activities are subclasses Then I declare a static vari…… -
Java – spring: init method, postconstruct, afterpropertieset: when to use others?
There are many initialization options available in the spring bean lifecycle Init method, postconstruct annotation, af…… -
What does this Java error mean?
java.lang.indexoutofboundsexception: Index: 1365,Size: 1365 java.lang.indexoutofboundsexception: Index: 1365,Size: 136…… -
Java – format slf4j to record message types using colors
I am using slf4j to log in to my java application It involves a large number of logs and log monitoring Any suggestion…… -
Write a pattern method in Java to find the most common elements in an array
The question is: Here's my code that almost works, except for single element arrays publicstaticintmode(int[]n) { Arra…… -
LRU caching in java with generics and O (1) operations
This is a question in the interview The idea is to define a data structure instead of using Java's built-in LinkedHash…… -
VHDL – why can’t I add this ` STD_ logic_ vector`
What happened here? Why do I get an 'operator parameter type mismatch', and what should I do to solve it? -- -- 32-bit…… -
Object pool for Java wrapper and string
As we all know, sometimes Java uses object pools as wrappers and string types, and sometimes it doesn't For example: I…… -
Java – PGP data encryption for yubico OpenPGP smart card
I try to implement PGP encryption in Java applications based on yubikey Neo OpenPGP smart card applet It seems to be a…… -
What is a good tool for investigating the use of database connections in Java?
What is a good tool for investigating the use of database connections in Java? Developers are supporting a complex Jav…… -
Java – how to map the root directory of URL schema directory in servlet mapping in spring MVC?
<servlet-mapping> <servlet-mapping> <servlet-name>testServlet</servlet-name> <url-p…… -
Java & rabbitmq – queuing and multithreading – or couchbase as a job queue
I have a job distributor that publishes news on different channels In addition, I want two (and later) consumers to wo…… -
Array – use ‘iterator’ instead of ‘VEC’ as much as possible?
Is it considered a good style to accept iterator T when a function takes a series of values as parameters Not VEC t In…… -
Algorithm for filtering / standardizing bad signals
Use GPS to process tracking applications What algorithm should I run to filter out bad signals? It looks like an appli…… -
Multithreading – issue a QT signal from a non QT thread or issue a QT main event loop at 4.5
I call an emit signal1 () from a non QT thread It is just a pthread (pthread_create()), which calls a signaled QObject…… -
Java – retrofitting with firebase
Ask anyone for help This is my API method @POST("/user/new.json") Call createUser(@Body User user); This is my phone i…… -
Java – how to properly end eclipse startup configuration execution?
I am writing an eclipse plug - in that provides a new startup configuration type It can be expected that when the exec…… -
The equivalent of the C shift operator in Java?
C shift operator < do not loop, for example, if you do this: // C++ int a = 1; cout << (a<<38); You get…… -
Java – PMD for inferring arrayisredreddirectly direct rules
PMD has a rule named arrayisstoreddirectly in the sun security rule set: This is their example: public class Foo { pr…… -
Java – tzupdater and tzdata2016g publishing failed
TZUpdater 2.1. 0 failed to publish on tzdata2016g For Java 8, it failed, "source directory does not contain file: vers……