Recent Posts
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Detailed explanation of Android mobile phone management tools
Appphonemgr, an Android mobile phone management tool, is shared for your reference. The details are as follows Methods…… -
Detailed examples of Android implicit intent
Detailed examples of Android implicit intent preface: As the name suggests, the implicit intention is to find the most…… -
Detailed explanation of tablayout usage
Tablayout is a control provided by the design library. It is convenient to use the indicator. Its function is similar …… -
Java – handling new exceptions in anonymous inner classes
I have the following situations: /** Get a list of records */ public ArrayList<Record> foo() throws BazException…… -
Parsing ECC public / private key in Java (generated by GPG CLI)
I am trying to convert the ECC GPG key of armor to the corresponding Java class To generate the key pair I am using: G…… -
Java – read the jax-rs body InputStream twice
I have a jax-rs logging filter to record request and response details, as follows: public class LoggingFilter implemen…… -
How can this Recursive lambda be invoked in Java?
I recently encountered this code in Java It involves functions and printing Fibonacci numbers, and how it works public…… -
Test – guava ticker cache expired
Google guava tutorial says cache expiration can be tested with ticker According to my understanding, I can use it to f…… -
Java – in IntelliJ, why should I clean up and build wars to see changes when I run Google App Engine locally?
I'm using the Google application engine to build wars, and I notice that whenever I make local changes, I don't apply …… -
Java – unable to understand class objects
The Oracle Java documentation on internal locks and synchronization says: I don't fully understand the concept of clas…… -
Java – XHTML to PDF how to cache CSS using fly saucer
In my production pipeline, I need to generate hundreds of PDFs from HTML In this case, I first convert HTML to XHTML D…… -
Get split value after Java string splitting
I have a dynamically generated string I need to split the string according to the relational operator To do this, I ca…… -
Java – read the newline character in CSV, which is referenced in the file in flatfileitemreader of spring batch
I tried to parse CSV files with flatfileitemreader This CSV contains some referenced line breaks, as shown below email…… -
Java – how to include all modules in a POM project
I'm looking for a way from another POM XML contains all the modules in the project So in my case, I have a parent POM …… -
Java – clean up projects and regenerate class files in eclipse
After I cleaned up a project in eclipse, I didn't see the class file generated in the output folder "bin". Although th…… -
Java: disk based fast hash set
I need to store a large hash set that can contain up to 200 million 40 bit values It is acceptable to store it as a va…… -
Java – direct field access in spring MVC 3
I want to use direct field access for "command objects" in spring MVC 3 Solution You can use the @ initbinder annotati…… -
Java – how to make two classes share the same variable definition
What I really need is to be able to declare regular variables in the interface and implement the interface in two clas…… -
Java – what is the best way to test this? Binary number with 4 positions
Consider the four input fields a, B, C and D on the web surface. Users can fill in any of these There are 16 combinati…… -
java – System. Is the value returned by currenttimemillis() affected by the day light savings and leap second adjustments?
I know system Currenttimemillis () gives the millisecond time since the era, and it is very sensitive to the system wa…… -
Java NiO zip filesystem is equivalent to Java util. zip. Setmethod() in zipentry
I have some existing code to create a zip file in ePub 2 format, which works properly When trying to update my code to…… -
Multithreading – how to limit to asynchronous SEQ in f# Number of threads created by map operation?
The current setting is like this array |> Seq.map (fun item -> async { return f item}) |> Async.Parallel |>…… -
Build a process pipeline using processbuilder in Java 7
I've been trying to figure out how to manage some processes in Java using the new process builder I can't find a suita…… -
Java – spring utilities cannot be resolved
I'm trying to use one of the Oracle GUI examples of spring utilities But eclipse gave me errors and could not resolve …… -
Java – how to use a custom runner when using categories in JUnit?
I have a bunch of JUnit tests that extend my basic test class basetest, which in turn extends assert Some of my tests …… -
Java – does AspectJ not capture all events in the spring framework?
My project is based on spring framework 2.5 4. I try to add aspects to some controllers (I use AspectJ 1.5.3) I'm at a…… -
Java: how to store references to all instances of a class?
I'm used to C. to get a list of all instances of a class (this is a library class that can be extended by users), I us…… -
Java: preparing statements without connections
I'm trying to generate some SQL files in my java application I want to use Java sql. Preparedstatement creates my stat…… -
How to understand the wait and notify methods in java thread?
I am very confused about these two descriptions: >"Wait method blocks the calling thread and relinquishes the monit…… -
Use the new standard javax JSON serializes POJOs into JSON
I like the idea of using JSON serialization standard in Java, javax JSON is a big step forward. You can create an obje…… -
Using selenium 2.0 webdriver in practice
I want to write selenium test cases in JUnit and test my project in multiple browsers. I want to take advantage of the…… -
Java – deserialization with @ jsonsubtypes without value – missing attribute error
I deserialize jsons like this: { "type":"a","payload" : {...} } The type of payload depends on the type My class: pu……