包含标签：Java 的文章
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Java – iterative weakhashmap
I also use weakhashmap I want to implement fine-grained locking based on an integer parameter; If thread a needs to mo…… -
Java – how to automatically split large strings in IntelliJ ideas?
I'm testing with a long string So I need to split such a large string: privat static final String TOO_LONG_JSON = "{fi…… -
Java – JScrollPane needs to be narrowed down
I have a JScrollPane with a JPanel inside (the panel contains some jlabels) I want to resize the scroll pane to actual…… -
Make a very large Java array
I'm trying to find a reverse example. P ó lya project will be 900 million somewhere I use a very efficient algorithm t…… -
Java – how do I determine which monitor the swing mouse event occurs on?
I have a Java mouselistener on the component to detect mouse press How do I know which monitor to press with the mouse…… -
How to quickly capture screenshots in Java?
I am implementing a simple eye tracker, which requires fast screen synchronization to capture video from webcam The th…… -
Java – fastest way to check string size
I have the following code in the loop statement if (sb.toString().getBytes("UTF-8").length >= 5242880) { // Do …… -
java – class. Is getname () expensive?
In many courses of a project I'm working on, I see it called class_ The private static end member of name, which is de…… -
Called from Java GWT code JavaScript function of JS file
I have a button in Java GWT code I have a JavaScript file in the script folder I want to access the function of the JS…… -
Java – spring test Dbunit warning
I am using spring test Dbunit and receive a warning in my unit test: Code: @RunWith(SpringJUnit4ClassRunner.class) @Co…… -
Java swing on high DPI screen
I have a Java Swing program that uses the system look and feel: UIManager.setLookAndFeel (UIManager.getSystemLookAndFe…… -
Java – generic methods for non generic classes
I try to use a generic approach, so I don't have to repeat the code I tried: private Listener createListenerAdapter(Cl…… -
Java – Maven eclipse does not add dependencies
My POM The following code snippet is in the XML (you can execute the complete POM below) <dependency> <gr…… -
Java – connect appengine datastore and Search API
I don't know what's the best way to connect to the data store and Search API? What I am looking for is that whenever I…… -
Java – why doesn’t drag and drop work in selenium webdriver?
I tried to drag an element into another element using selenium webdriver, but it didn't work I tried all the solutions…… -
Java – double my money: my framework uses doubles monetary amounts
I inherited a project in which monetary quantities use dual types To make matters worse, it uses twice the money for t…… -
Java – if the running mode is parameter = “methods”, how to force TestNG to create a new test class instance for each method
If the running mode is parameter = "methods", how to force TestNG to create a new test class instance for each method?…… -
Java – how to draw a tree representing the connection node graph?
I want to display the tree in the Java GUI, but I don't know how The tree represents the graph of connected nodes, as …… -
How to set a custom DH group in Java sslengine to prevent logjam attacks?
The new logjam TLS attack is based on the common DH group This link recommends generating a new, custom 2048 bit DH gr…… -
Java – iterates a one-dimensional array into a two-dimensional array
I have, int[10] oneDim = {1,2,3,4,5,6,7,8,9,10},index = 0; As shown in figure here, we create a two - dimensional from…… -
Client side template language using java compiler (dry template)
I want to be able to define templates once and use them to render HTML from the server and client (dry principle and a…… -
Java recursion and two variables
I've been trying to figure out how the stack of this recursive method works public class Apples { public static v…… -
Java – using cookie persistence improvement
My guy, I'm using modification, and I want to know how to handle session cookies transparently Client client = new Apa…… -
Java, the most effective way to pass string array as method parameters
Why passing {a, B, C} to a method doesn't work? 7 String[] args = {"a","b","c"}; method(args); private void method(S…… -
Java – is sorting by a non transitive comparator “working”?
If I report to collections What happens if sort provides a non transitive comparator? Can I enter an infinite cycle? A…… -
Java – spring boot – how to specify an alternate boot class? (multiple entry points)
I want to add an alternative entry point to my spring boot application I'd rather think of it as a fat pot Is that pos…… -
Looking for 2D java games?
I am writing a very basic java game based on the idea of theme hospital I'm new to Java. I'm studying in college I hav…… -
Java – socket input stream is hung at the end of reading What’s the best way?
I'm a little obsessed with how to avoid my socket hanging on reading This is my code: Socket socket = new Socket("some…… -
Java – what is the purpose of calling type parameters in the new constructor?
In Java specification（ http://docs.oracle.com/javase/specs/jls/se7/html/jls-15.html#jls -In 15.9), new has the follow…… -
Java – GWT developer plug-in for chrome and Internet Explorer – block installation
I am trying to install the GWT developer plug-in for Chrome (version 34.0.1847.131 m). I received the following error:…… -
What is the difference between navigableset, sortedset and TreeSet in Java?
TreeSet places elements in a natural sort or a comparator provided by Sortedset also maintains elements in natural ord…… -
Java – how to check whether the element in the int array is empty?
Example: I want to see if array [5] saves a value or is empty Solution Elements in the original array cannot be empty ……