包含标签：Java 的文章
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Java – pop up dialog from background thread
I need a pop-up dialog box. When I receive messages from different threads, the dialog box should not depend on activi…… -
Java – grouping in a simple aggregation storm topology
I'm trying to write a topology that does the following: >Subscribe to a twitter feed (based on keywords) > an ag…… -
How to get the name of an object in Java?
Like this, a = new a (), how do I get a name? (from a) get the string "a"? A JPanel contains some jtextfields, and a m…… -
Java date annual calculation is closed two days a year
If you can imagine, this will cause Y2K style errors in my software Strangely, the annual calculation only takes place…… -
Java – why do I get stackoverflowerror
public class Category { public class Category { private Category parentCategory; private Set<Category> …… -
Java – the behavior of the statement returned in catch, and finally
public class J { public class J { public Integer method(Integer x) { Integer val = x; …… -
Java – use jsch to put files into a remote directory and create it if it does not exist
I want to copy files to a remote directory using the jsch library and the SFTP protocol In the API documentation, http…… -
Java – wicket: hide comments in HTML
JSP supports the syntax of <% - Comment -% > annotation, which is a way to annotate the code so that it is not i…… -
Java – can IntelliJ generate getters without “get” prefix?
IntelliJ has a cool feature to generate Java getters For example, for a field private final string foo, it will genera…… -
Java – extension API internal error: org powermock. api. extension. reporter. MockingFrameworkReporterFactoryImpl
I tried to write a unit test with powermockrunner, but I received the following error: I checked all the dependencies.…… -
Java – get the class name of the logging record
To log errors for a given class, I am accessing the class name: private static final String CLASS_NAME = MyClass.class…… -
Java – asynchronous logging
Now in my application, at some point we are recording something heavy in the log file Basically just for recording, we…… -
Multithreading – what is the difference between deadlock prevention and deadlock prevention?
I've heard of these two terms. Are they the same thing or different? Solution You can see: Avoid: do not share resourc…… -
Is the Java – dto pattern deprecated?
Is the dto pattern still a valid option in a complete Java EE application cluster? Relevant applications use EJBs, hib…… -
Java – LRU caching using LinkedHashMap
I try to use LinkedHashMap to implement LRU caching Note that if you re insert the key into the map, the insertion ord…… -
Java – interaction between JUnit @ rule lifecycle and @ before
I have some JUnit tests using temporaryfolder @ rule They use the temporaryfolder in the @ before method to perform so…… -
Java – disables certain aspects during unit test runs
I have integration tests (load context) and unit tests running together My code uses spring compile time weaving My pr…… -
Java – what is the time complexity of this sort method?
I wrote this course: public class SortingObjectsWithAngleField implements Comparator<Point> { public int co…… -
Java – why change the value from float to double?
I've been trying to find out why, but I can't Look at the following example float f; f = 125.32f; System.out.…… -
How to program monadically in Java 8 while achieving comparable performance?
Is monadic programming slow in Java 8? Here is my test (create a new instance for each calculation using any of the ri…… -
Java: get any day of the week from the calendar
Using the calendar, I can get the week, year and all the details of the day How can I browse a specific day that week?…… -
Use Java regex to delete every other character in the string
I have this homework problem. I need to use regular expressions to delete every other character in the string On the o…… -
Java – what are the new features of eclipse Helios?
What are some new and noteworthy features in eclipse Helios, especially for the Java ide? I looked around the website …… -
JavaFX could not load @ font face font because com sun. javafx. css. StyleManager loadStylesheetUnPrivileged
I have asked a similar question here, but it seems unclear, because I have a lot of code in the project and can't be p…… -
Java – unable to parse import com google？
I used a tutorial on this page: It told me to change the main activity. Except for this error, everything went well: "…… -
Java – sets the size of the jslider
How do I configure the thumb size for jslider? The default value is used, and the range of jslider is 256. The thumbna…… -
Java – possible null pointer exceptions for autoconceable idioms
Consider the following try with resources blocks: try (Foo foo = getAFoo()) { } For implementing Java Some classes of…… -
Java – SQLite and hibernate – good idea?
I am using java hibernate to develop a small desktop application I am using MySQL for development, but I want to repla…… -
Should I choose SWT or swing to program the GUI in Java?
I need to create a GUI application in Java I realized that I had different options (including SWT and swing) I've foun…… -
Java implementation class or import class
Internally for Java, what is better, or what is best, or what is standard: implementing a class with constants or usin…… -
ORM – how to use dapper Rainbow (or optionally dapper. Contrib) inserts and updates objects with navigation properties
Recently I started studying dapper I'm testing it and can do basic crud. I mean, the basic is to work in a class and t…… -
Java – how to use the builder pattern of an entity with JPA
I read that using the builder pattern is useful when you have a class with many parameters I want to know how to imple……