Java
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Java – compile Hadoop 2.2 0 work?
It seems that all the examples are built considering the old version How to compile my java program on Ubuntu so that …… -
Java – is my code too repetitive?
I'm studying my text adventure game and wonder if there's an easier way to write repeated code blocks, such as what I'…… -
How to set an infinite loop and break it (java thread)
I've set up a thread and I want to run it using a loop Therefore, this thread should run in the loop, interrupt within…… -
Java – how do I create a GUI in Android instead of using XML?
I don't like managing XML and Java together. Can I use the Java language to create the same GUI? Solution Yes, you can…… -
Java – Method println (int) in printstream type is not applicable to parameters (string, int, int, int)
public static void main(String[] args) { public static void main(String[] args) { int num1 = 1; int num2 = 1; …… -
Apply the function to each nth element in the vector
I have a vector in R: > v <- c(5,10,15,20,25,30,35,40,45,50) I want to apply a function to every Nth element of …… -
Java – is it possible to find out whether the value exists twice in ArrayList?
I have an integer ArrayList ArrayList <Integer> portList = new ArrayList(); I need to check whether I have enter…… -
Import the textfile and read it line by line in Java
I want to know how to import a text file I want to import a file and read it line by line thank you! Solution I don't …… -
Java double gets all numbers after dot / comma
This is a simple task, but I can't solve it myself I have double digit1 = 12.1; double digit2 = 12.99; And need a …… -
Can I use variables in Java to name variables?
What I want to do is have a loop each time to name a certain number of variables Therefore, sometimes when I run the p…… -
Java – generate WADL from existing CXF rest Service
I implemented Jax - RS service with CXF How can I generate WADL? Or is there anything like http://path.to.your/restapp…… -
Java – what is better shallow or deep cloning?
I'm a little confused about object cloning in Java What is the main difference between shallow cloning and deep clonin…… -
Repetitive sequences in Java / Python / Mathematica
How to write the following statements in a given language? a(0) = 1 a_(n+1) = 1 - 1 / ( a_n + 3) When a_ When n – >…… -
Java – check Batis mapper bean error
There are spring and mybatis network projects I use IntelliJ idea for development Review comments: Could not autowire.…… -
Convert text files to Java sets using commons or guava
I want to load every line in the file into the HashSet collection Is there a simple way? Solution how: Sets.newHashSet…… -
Java – RMI server exception
When I try to run a server using a remote registry, I get the following exception from RMI The registry code of my mai…… -
Java – is JDBC secure?
I am a novice in JDBC. The new project requires me to use JDBC What I want to know is, Is JDBC secure? How to prevent …… -
Java – sqlnestedexception: unable to create poolableconnectionfactory (user ‘< >‘ @ ServerIP ‘denied access (use password: Yes))
I have an openshift site that tries to connect to an external MySQL server Here is my code so far public class BaseDAO…… -
Java – Grails overrides default email authentication
I found that Grails authentication also rejected some valid email addresses I opened a question on GitHub here Is ther…… -
Java – Method getbuild() does not define type mvcuricomponentsbuilder MethodArgumentBuilder
The problem of building URIs for controllers and methods from views @Controller @RequestMapping("/produtos") public cl…… -
How to use the & operator in Java? Porting C code
So I have this simple code in C if (flags & 4) Now, when I migrate rows to Java: if ((flags & 4) == 1) It will…… -
Java – should I use dependency injection for good design and testable code?
I have a class representing images: it's called photography The constructor is as follows: Photography::Photography(QS…… -
When a runtimeException is thrown, Java expects the return value
Why doesn't this compile (try Java 8 and Java 10)? It generates a missing return statement error public class Compiler…… -
Java – error compiling Maven selenium project – compilation error package not found
I tried to run the Maven project of selenium test (Maven - install) Below is POM <project xmlns="http://maven.apach…… -
Java – deploy / host spring boot applications
I recently completed a simple spring launch application using the IntelliJ ide The application runs locally as a sprin…… -
How to send objects to socket arrays in Java
Example: ArrayList arraySocket=new ArrayList(); ... arraySocket.add(client); ... for (Object arraySocket1 : arraySocke…… -
Java – get the latest application version from Google playstore when multiple apks are uploaded
I uploaded multiple apks for my app on playstore to support it on all devices The problem now is that when I use the f…… -
Java – relative file path with “user. Dir” system attribute
I'm trying to read a local file in a web application on the server When testing JBoss outside deployment, the file pat…… -
Java – OpenSSL decryption returns false
I try to encrypt the password in Java and decrypt it in PHP using opensll I got nothing but Boole This is my java code…… -
What language can replace Java?
I may release a premature question. Maybe I'm just scared for no reason, but the way Oracle handles Java is not very p…… -
Java – JPA inheritance is not dry
I have inherited the job, but it's not very dry I have to repeat the coding for each new bolt type It's best to show m…… -
Java – Android image view gradient background
Therefore, I don't want to update ImageView to change the gradient according to some events of mobile phone gyroscope ……