包含标签：Java 的文章
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Java – use the long string in JSON (> 1 show) of Jackson token stream
I'm trying to write some code to process JSON documents, which contain extremely long string values (more than 1 billi…… -
How about Printing Java maps?
See English answers > How do I effectively iterate over each entry in a Java map? 38 I created the following maps: …… -
Java – error trying to create hive table using custom serde
I have a file that contains the data that needs to be uploaded to the hive table I wrote a custom serde (which is basi…… -
Java – use hibernate 4 and Postgres’s “select for update of”
I'm using Postgres 9.3 5 and recently updated hibernate from 3.2 to 4.3 eleven As a result, I couldn't run the "select…… -
Java – set the orientdb of the shard
I'm trying to set up on 3 servers For example, I am >Node1 is a client_ 1 and has a client_ Copy of 2. > Node2 i…… -
Java – clarification of “int” numbers starting with 0
public class Test { public class Test { public static void main(String[] args) { int i = 012; Sys…… -
Declare the initial value of BigDecimal array in Java
I want to declare a BigDecimal array with an initial value of 0, as follows: BigDecimal[] val = {0,0}; But it doesn't …… -
Java – matrices does not work in OpenGL
I am trying to create an orthogonal matrix and an appropriate model and view matrix to view a simple triangle just to …… -
Try to create a hash table in java with string as the key and double as the value
In the following procedure: import java.util.*; public class HashTableStringdouble { // private Hashtable<String,…… -
Java – Test thymeleaf custom dialect with mockito
I recently wrote a custom dialect and a custom processor for thymeleaf to handle some custom tags and replace them wit…… -
Java – how to establish websocket connection in Android service?
I've been trying to create an Android service that will allow me to maintain a websocket connection and send some data…… -
Unable to create service com parse. PushService：java. lang.NullPointerException
I'm using the service https://www.parse.com Push notification My code: ParseCrashReporting.enable(this); …… -
JBoss logging for Java unit testing?
I inherited some java code explicitly implemented using JBoss logging I know this is usually configured as JBoss subsy…… -
Java – applet – server communication, what should I do?
I have an applet and I have to send a request to the web application to get data from the server in the database I am …… -
Java – how does libgdx repeat the background?
A few days ago I figured out how to do some scrolling in libgdx Now I'm trying to do something related I want to repea…… -
Java – use Multimap instead of map to send parameters of rest assured call
I'm declaring a variable static Multimap<String,Object> multiList = ArrayListMultimap.create(); And add image mu…… -
Java – the swing button does not react immediately! How can I change?
I built a form with the visual editor of NetBeans When I press one of the buttons, it should do the following: >Set…… -
Java – error: “qualifier must be an expression” – Android studio
Activities: public class PreviewsFragment extends Fragment { private ViewPager mPager; @Override public View onCreat…… -
Java finds a specific letter for the first time
I am developing a program in Java I need to find specific text in the string Suppose the string is' hawaiie ' I need t…… -
How to send content and attachments using Abdera atom client
We use Abdera to interact with IBM connections API, but our problems are mainly related to Abdera itself I think there…… -
Java – httpclient authentication, keep login status
So my goal is to log in to the forum using HTTP client, and then post a reply post on the forum My login is good, but …… -
Java – change the field name in the elasticsearch response
I need to change the field name in the elastic search response (for example, change "title" to "title") I want to avoi…… -
Java – camel routing unit test result failedtocreateroteexception
I want to unit test the camel route This is a sandbox example to illustrate the exceptions obtained during unit testin…… -
ArrayList in Java
ArrayList<String> veri1 = new ArrayList<String>(); ArrayList<String> veri1 = new ArrayList<String…… -
Multithreading – I don’t understand multithreading programming
Someone can explain to me how a multithreaded application can be faster when a core CPU can only do one thing at a tim…… -
Java – generics: input variables?
In order to be able to replace a specific implementation, it is usually known to write List<AnyType> myList = ne…… -
Java – what is the purpose of using the toString () method in the following code?
See the English answer > how to override tostring() properly in Java? 11 This is my code: public class Gitfiddle { …… -
Constructor of Java subclass
When compiling this program, I get an error – class Person { Person(int a) { } } class Employee extends Person { …… -
Java – how do I resolve a string to int using default values?
See English answers > good way to encapsulate integer Parseint() 22 I've tried this, but it (? 0) doesn't seem to w…… -
Java – how to select a value from an array?
How do I select a value from an array? For example, string [] ans = {'', "– ''," / "," * "}; Then I want to choose "" …… -
Java – is there a way to disable hibernate optimistic locking?
I have one entity: @Entity public class VersionedDo { @Version @Column(name = "version") private int versi…… -
Non public top-level classes in Java
What is the reason for creating non-public top-level classes in Java? Suppose we have foo Java, there may be class Foo……