包含标签：Java 的文章
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Java – an instance that calls a static method
nice day! I'm a little confused I want to use calendar, so I search it on the Internet and encounter the following cod…… -
Why do single threaded Java programs have so many threads?
I have a java program with 13 threads, but only one is 99% CPU utilization and has been running for about 24 hours Oth…… -
Java – resource exception not found
I got a resource not found exception in the line where I referenced one of my class methods that mapped the EditText o…… -
Java stream operation sequence executed by the terminal
See English answers > stream intermediate operations ordering 2 For example, let's look at these examples using the…… -
What are the effects of redundant import statements in Java?
What is a redundant Java import statement? Do they affect the compiled runtime (performance / size)? Or something like…… -
Java BinarySearch
Can I get some help? I've tried many ways to make this work. I get array sorting and printing, but then my binary sear…… -
Java – use limit connection string
Using only the standard Java library, what is a simple mechanism for concatenating strings to restrictions and appendi…… -
Java – how to prevent the function passed to optional orelse from being executed when optional is not empty?
If I call a function from orelse, the function will be executed even if optional is not empty Is there any way to rest…… -
Java – use jodatime to calculate the month between the two dates of the holding year
I use this code to calculate the number of months between the input pastdate and CurrentDate It uses jodatime LocalDat…… -
Using Java and AES to encrypt large files
I tested my code with files below this value (10MB, 100MB, 500MB), and the encryption worked normally However, I encou…… -
Java – can I restart my application using main()?
I'm working on a way to restart my java application by clicking a button on the GUI I searched the Internet and encoun…… -
Java – does Python really create all binding methods for each new instance?
I'm reading the classes in python (3.4). According to my understanding, it seems that each new object has its own bind…… -
JPA – must be in the connectiondrivername property “how do I resolve it?” Specify the jdbc driver or datasource class name in
Overview: This is my first WebSphere 7 server & amp; JPA 1.0 & EJB & Derby database Second: This is persis…… -
What are “nodes” in JavaFX / fxml?
What does the word "node" mean in the JavaFX / fxml context? If I search this question, I find that everyone is using …… -
Send trap V2 in Java
How to send SNMPv2 traps from Java applications I tried to do an example on snmp4j, but it didn't work Solution I use …… -
Java – why is the output different in the case of \ u0026 \ u0026, &, |?
This is a code snippet Can you explain why the output changes? 1) public static ShortCkt { public static void main…… -
How do I compare two dates created as jodatime localdate and localdatetime?
LocalDate startDate = new LocalDate(2014,1,2); LocalDate startDate = new LocalDate(2014,1,2); LocalDateTime startDate…… -
Java – get emoticon flags by country code
There is a list of country codes. I need to attach emoticons to each code This NPM example looks similar to my target …… -
Java – how to unpack an original object from a dynamic proxy
What is the best way to unpack a dynamic proxy to retrieve the following original objects? thank you. Solution Each ag…… -
How do events work in Java swing?
How does event creation and handling work in Java swing? Solution Java event mechanism is actually an implementation o…… -
java – simpleJdbcTemplate. – Insert and retrieve IDS
I use simplejdbctemplate to put data into the database simpleJdbcTemplate.update("insert into TABLE values(default)");…… -
Java – extract values from HashMap
I try to learn and understand through the work of HashMap So I created this HashMap to store some values that will giv…… -
JNA unsatisfiedlinkerror – when I put Java library. Takes effect when path is set to a dummy value
Using JNA 4.0.0 on Linux 0, I tried to load a native library (libmean. So), which is located in the Lib subdirectory (…… -
Create directory If so, delete the directory and its contents and create a new directory in Java
I'm trying to create a directory in Java If it exists, I want to delete the directory and its contents and create a ne…… -
Proxy configuration of Java – jvisual VM
I've tried jvisualvm. In my JDK (1.6.0_15-b03) Exe reload the plug-in directory as follows Tools > plug ins > Up…… -
Java – many to many in mongodb configured with spring (comments first)
I'm modeling a pattern Since I am a novice of Mongo dB, I don't know how to model NoSQL database Using spring data is …… -
Java library for converting latitude / longitude to MGRS coordinates and vice versa?
I want to know what kind of libraries exist (licensed or unlicensed) and I can find a way to convert between latitude …… -
Java – is it bad practice to save data in static variables?
(this exact question may have been asked before. I can't find it through search. If you find that it has duplicate tag…… -
Java converts a unit to a string of integers
I want to convert strings such as' 1g 'or' 100k 'or' 15. 3M 'to integers I suspect it's floating around some libraries…… -
Java – why project specific runtimeException?
There is a com myco. myproj. Does myprojruntimeexception have any meaning, Solution Yes Throw unchecked exceptions and…… -
java. Lang. outofmemoryerror: cannot create a new native thread
I see such comments At Sun Java Forums In my application, we initially planned to use threads, but then we decided we ……