包含标签:Java 的文章
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Java – checkstyle reports a localfinalvariablenamecheck error for the catch exception parameter
I have a strange question, I'm not sure if it's a problem between the two ears or a checkstyle one LocalFinalVariableN…… -
Java – what is the difference between using @ import and @ importresource annotations in the spring framework?
I am studying for spring core certification, and I suspect it is related to the use of @ import and @ importresource a…… -
What does Java – (savedinstancestate) mean
There are some codes in my main activities if (savedInstanceState != null) { mCurrentSelectedPosition = sa…… -
Java – regular expression failed to check whether the string contains non numbers
Why did this fail? String n = "h107"; if (n.matches("\\D+")) { System.out.println("non digit in it"); } I slept one …… -
Mouseevent – get mouse from a node_ After the pressed event, the mouse event cannot be obtained from any other JavaFX 8 node
I'm creating a rich text component that contains the selection function of JavaFX projects and face some difficulties …… -
Java – using interfaces on the service layer
In our project architecture, we use the classic MVC pattern, including the classic service layer (open transaction and…… -
Cannot find the type: Java Lang. Long’s verifier Post ID
What's wrong with my plan? I received an error HTTP Status 500 - Request processing Failed; nested exception is javax.…… -
Java – Amazon – MWS: differences between reports and order lists
I'm trying to integrate Amazon mall orders into our system I did it with Magento before and thought it should be easy,…… -
Java – Android tells me that my bitmap has been recycled before I actually recycle it
I get my bitmap from XML: //Get bitmap from drawable bd = (BitmapDrawable) view.getResources().getDrawable(R.drawable.…… -
Data structure – hash table – implemented using binary search tree
From cracking the code interview, page 71: I know the basics of linked list, hash table and BST, but I can't understan…… -
The value of Java – hashtable will not increase
The following java code: public class TestCSVDataToMap { public static Hashtable<String,Integer> testTable …… -
Multithreading – Perl threads separate themselves
I'm new to Perl (and programming, too) and have been playing with threads for the past few weeks. So far, I understand…… -
Examples of scanner errors in Java books?
I'm practicing HashSet from the Java books of cay S. Horstmann and Gary Cornell, and I think there's an error in the s…… -
Java – what does t mean when used as a method signature? Is it a return type?
abstract public <T> T iterEdges(EdgeFun<T> func,T accum); abstract public <T> T iterEdges(EdgeFun<…… -
Java – how do I import my own classes?
I have this Java class: package myClass; public class myClass { private int herAge ; public void setHerAge (i…… -
Java generalized linear model library
I'm trying to port some R code to Java / Scala and need an equivalent GLM function Is there any Java / Scala library t…… -
Java – Braintree does not update the user’s preferred / default payment method
When a customer wants to select his payment method when creating a sales order, I see that it has changed in dropinui …… -
Java – how to change Derby to read / write mode
I have a derby database that gives me a read-only error The database worked normally until last week when there was in…… -
Java – is there a limit on the size of the response I can read over HTTP
I have a java program that calls a URL The response to the URL is JSON / string I have to write a program to get data …… -
Java uses regexp to split space?
I try to match and capture commands and parameters from the following inputs: !command param1 param2 I am using the Ja…… -
How many parameters does the varargs tool allow in Java?
I'd like to know how many parameters can be passed using the varargs tool in Java Is there a JVM or memory limit? As f…… -
Java – container level versioned library shared by war
In a java servlet container (preferably tomcat, but if this can be done in another container, then say so) I want some…… -
Symfony – the difference between get (‘doctrine ‘); And getdoctrine();
In symfony, I found three ways to access the doctrine service and entity manager, as shown below: $em = $this->getD…… -
Arrays – function [hashtable []] parameter, which can be from pipeline or parameter
This is a function that accepts a hash table array through parameters: function abc () { Param([Hashtable[]]$tabl…… -
Java – how to obtain module int_ Max’s results?
If I try to apply: integer valueOf(String.valueOf(Integer.MAX_VALUE)“9”); But I need to get the remainder modulus from…… -
Java – why system Nanotime() is incorrect at the beginning of the iteration?
I noticed system The mode of nanotime() Whenever I start an iteration, nanotime () becomes very incorrect in a few lap…… -
Java – stringreader from string Error given in split output
An exception occurred while using stringreader When creating an object, the string I parse is through string Split gen…… -
Java – how to open PDF in a new tab and display it in the browser (no download required)?
I have a PDF link. When I click it, I want it to open a new tab and render it in the new tab, instead of asking me to …… -
Java – run akka with runnable jar
I'm trying to use NetBeans to implement akka. Net in the Java Maven project When I run it from NetBeans, it works norm…… -
Timestamp and time zone conversion in Java and MySQL
I am developing a Java application with MySQL database on a server located in a different time zone from me. I am tryi…… -
Java – Jersey records all response times of the service
I have a Java application and I want to record all execution times of each rest service How to measure the execution t…… -
R. Do all x elements exist in Y
In R, how to test the elements of a vector that does not exist in another vector? X <- c('a','b','c','d') Y <- c……