包含标签:Java 的文章
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Binary to decimal Java converter
I'm creating a code that allows you to convert binary numbers to decimal numbers and vice versa I've created a code to…… -
Java – use volatile keyword with wrapper class
In Java concurrency classes, I recommend using the following code as counters in multithreaded applications private vo…… -
Java – in dataflow 2 X is the easiest way to convert a tablerow to a string in JSON format?
If I don't write my own function to complete it, then in data stream 2 What is the easiest way to convert a tablerow o…… -
Multithreading – Delphi Seattle 10, multithreading / core performance
I have a 100% Delphi code application It is a 64 - bit windows console application with workload manager and a fixed n…… -
Java – syntax for moving backward in LinkedList?
I know that linkedlists are implemented in a two-way link, so each node has a next and a previous pointer However, I c…… -
java – Files. Blocked / synchronized version of copy
I'm trying to copy files from one directory to another, but I hope the call is blocked so that the program will execut…… -
How to easily convert a two-dimensional array into a two-dimensional vector?
I'm focusing on rust wasm tutorial. I hope to easily add a ship (a real shape) to the universe in the game of life As …… -
Java – how to use the return value of executorservice
I run the for loop under executorservice If any return type fails, I need to return resposne as "fail" or I need to re…… -
Replace values that appear more than once in the vector in R
I have a value vector x <- c(1,2,3,4,5) For each occurrence, I want to replace it with the value in vector Y: y <…… -
Java return returns blank
I'm trying to create a Java method that returns the sum of two values X and y Currently, when I run the code, the outp…… -
Java – if it is not null, put the value into the map
Does java have anything similar? map.putIfValueNotNull(key,value) Therefore, I can put the value in the map only if it…… -
Java – a simpler way to reverse the comparator created inline by static methods (functional interfaces)?
Since the comparator < T > is a functional interface, I can do this Comparator<Instant> instantComparator …… -
Java – which EJB 3 persistent provider should I use?
I use EJB 3 on a fairly large J2EE project. By default, NetBeans sets the persistence provider of entity beans to TopL…… -
Java – logback roll only for file size
I'm using logback 1.0 13. I want my log files to scroll completely based on file size If it takes two hours or two yea…… -
Java – interpretation of V – > V > 5
I have a given function call, and Java gives me an error because the object cannot be compared with int (of course...)…… -
Java – JUnit asserts double arrays
How do I assert that two double arrays contain the same elements There are some ways to assert that integer arrays and…… -
java – Log. D log is not displayed in logcat Android studio d
Android studio does not display any logs I wrote in the code I have tried to set the log to verbose and debug I'm usin…… -
Java – override methods and then face problems
When the overlay method then faces a problem: public interface IProduct { public void sendMessage(Object object); …… -
Java – null check using Date object [copy]
See English answers > java object null check for method 8 Solution Check if it is empty: if (date == null) {...} Ch…… -
Java – spring H2 embedded database
See the English answer > does spring embedded database support different SQL conversations? 3 MODE=MysqL DB_CLOSE_O…… -
Java – activator 1.3 0 error on SBT project?
I'm happily working on some SBT projects. After I download and use the new version of typesafe activator, I can't open…… -
Java generics: return bounded generic types
I follow this Code: public <T extends ParentException> T managedException(Exception cause) { if(Exce…… -
Java – understanding TreeSet returns 0 during comparison
I created a student class like this: public class Student implements Comparable<Student> { private String f…… -
Leiningen: create an executable jar to run without Java – jar
I tried to understand how to package a command - line application written in clojure for distribution I don't want use…… -
How to copy files in Java through bufferedinputstream and bufferedoutputstream?
I want to use bufferedinputstream and bufferedoutputstream to copy large binaries from the source file to the target f…… -
Java date difference days
See English answers > Android / Java – date difference in days 18 Date nextCollectionDate = dispenseNormal.getDispe…… -
JavaFX button with multiple text lines
I need to create a toolbar on the screen. It has multiple buttons. Each button must have multiple lines of text For ex…… -
Is there any way to use the onresourcerequested callback of phantomjs in the Java driver?
I want to avoid loading CSS files in phantom JS I'm using a Java driver page.onResourceRequested = function(requestDat…… -
Java – why does the dropwizard configuration not work?
Recently, I changed the dropwizard version of HVDF project from 0.6 2 to 0.8 2. Once I try to run the application, I g…… -
Can generic types be extended to multiple classes in Java?
I'm trying to write a method using generic parameters in Java. I want to limit it to one of three possible classes (fi…… -
Java – update multiple volatile and j.u.c.atomic variables atomically
In order to update two or more volatile variables atomically, do you need to protect them through lock with synchroniz…… -
java. security. Invalidalgorithmparameterexception: the parameter object is not ecparameterspec
We use WL 11g and jdk1.0 on Linux machines 7 update 121 We see the following error to another Weblogic machine during ……