Java
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Java – update database in JSP
I wrote this java code for my JSP page to update the user's current login details The code does not show any errors or…… -
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…… -
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…… -
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…… -
Multithreading – if there were more threads, would my program get more CPU time?
If the current kernel is scheduling 60 threads, they belong to 3 processes: They are all doing calculations (no disk I…… -
Java – Android: how to build dates from server dates
I have the following code to convert the date string returned by the server into a self - string /** * Change date for…… -
Java – Android: targetapi is not recognized in the manifest
My list has the following lines: <intent-filter android:autoVerify="true"> But I got a lint warning: Attribute …… -
The correct format between two times in Java
I tried to calculate the number of hours between two in Java I'm using joda time library to format it The program can …… -
Java – job scheduling setrequiresdeviceidle (true) and setperiodic () do not work
I'm developing an application to execute the background task and check whether the device is idle in 10 seconds, but s…… -
How to use sonarqube5 3 analyze java code
The following error was given when analyzing the code Retrieve remote issues of project newsonarproject... Project not…… -
Java – navigation drawer and Android data binding
Sorry, my English is not good I need to use the Android data binding processing button to click I'm in content_ main. …… -