包含标签：Java 的文章
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Java – multiple conditions in ternary conditional operators?
I'm in the first semester of Java programming. We just introduced the conditional operator (?:) condition I have two p…… -
Java – why is my null check so slow?
So my code looks like this right now public boolean in(TransactionType... types) { if (types == null || ty…… -
How do I convert strings to hexadecimal and hexadecimal to strings?
I made a simple program for sending and receiving data through the serial port in Java I connect the serial device to …… -
JUnit – the unit test of the spring boot actuator endpoint is invalid when the port is specified
Recently, I changed my spring boot attribute to define a management port I wrote a unit test for the test / metrics en…… -
Automatically update rows in tableview from the model
I've been looking for information about refreshing data to tableview I tried to modify the model directly, but I got a…… -
Java – ActiveMQ web console is not suitable for embedded agents
I have an embedded agent that is completely configured through Java code (no deployable XML file) When I point my brow…… -
Java 8: how to use lambda expressions to copy the value of a selected field from one object to another
I'm trying to understand java 8's new functions: foreach and lambda expressions Attempt to override this feature: publ…… -
Java – Trace allocation of int []
When viewing my remote application in the jvisualvm through JMX, I found that I saw the memory usage when I was idle: …… -
Use the keyset () method and change the set to string array? Java
So it should be very simple because I know it's possible (I just don't know 'set') So basically there is this treemap,…… -
Java – dynamically change the number of nested for loops
I don't know if this is a stupid question, but I need to dynamically change the number of for loops without recursion …… -
Java – convert image to black and white – failed, bright color
I tried to convert the image to black and white only (not grayscale) I used this: BufferedImage blackAndWhiteImage = n…… -
Where can I find Java 8 Src zip
I just unzipped JDK 8.0 on XP according to the following link installing JDK8 on Windows XP – advapi32. dll error But …… -
Java – spring social LinkedIn: is there an API that can be used to retrieve user items?
I am currently using spring social LinkedIn 1.0 0. Please log on to my website I have a feature that I need to access …… -
Java – how to create a new database in Oracle 11g Express Edition?
I am a novice in Java. I have installed Oracle Database 11g Express Edition and SQL developer How to create a new data…… -
Java – get the number of simulated calls
Suppose I want to test such code: class ClassToTest // UsedClass1 contains a method UsedClass2 thisMethod() {} Use…… -
Will the latest version of Java 6 use JavaFX 2 out of the box
Since Java 7 is not as popular as Java 6, I wonder if you can use WebView and other things in the latest update of Jav…… -
Java. With error Selectonemenu of lang. string cannot be cast to javax. String faces. model. SelectItem
I want to fill in a selectonemenu, but there is always this error: java.lang.String cannot be cast to javax.faces.mode…… -
How to use untyped Java util. List to scala 2.8 buffer
I have to call some Java. Java that returns no type util. List. It seems that I can't convert it to scala 2.8 list wit…… -
Java – show me a simple example of Oracle streams?
I have just started my research project and hope to use Oracle streaming I'm looking for an example of a direct, hello…… -
How to use java to get the list of available serial ports in my computer?
I just run some code to get the list of available ports in my cmputer. When I have three free COM ports, it returns my…… -
Java – has multiple types of JSON string map [string, object]
I have this JSON string: { "startDate" : "2014-12-17T14:31:40Z","name" : "Izek","age" : 12 } When I use Jackson to c…… -
User preferences in Java EE applications
I have a growing web application that now needs to be able to store user and system preferences / settings In the past…… -
Java – how do I switch to the authentication pop-up window and enter credentials?
After opening the application URL, the user will be redirected to the login page with a login button driver.get("abc.c…… -
java. util. IntelliJ deprecation warning for HashMap
IntelliJ seems to think that Java util. HashMap's no Arg constructor has been deprecated, as judged by its style of ma…… -
Java – Eclipse: externalizing strings?
It seems that the "externalize strings" function can get all the contents, generate a messages class, and a Txt file, …… -
Restricted Boltzmann machine and deep learning java code
Since the last few days, I am reading and studying restricted Boltzmann machine and deep learning Now let's test the a…… -
Java – spring 3.1: datasource is not automatically connected to the @ configuration class
I am using spring MVC 3.1 0m2 and try to move my configuration to java bean But I encountered the following errors: Fr…… -
Java – implement filter class loader
We are extending our Java application to support plug - ins Part of this includes keeping plug-ins isolated from our o…… -
Java – Hibernate: manually call sequencegenerator?
I wrote my idgenerator: public class AkteIdGenerator implements IdentifierGenerator { public Serializable generate(…… -
How to force timeout to drivermanager Getconnection () method call?
I have an application that will establish a database connection with MySQL and execute queries Sometimes, drivermanage…… -
Java – create, update and get the same / different dto objects in the rest endpoint?
Consider using userdto class and usercontroller public endpoint to create, update and obtain users Having the ID attri…… -
Java – custom valuechangehandler GWT
I need to write a custom valuechangehandler and call onvaluechange (valuechangeevent) But I don't understand how to wr……