包含标签：Java 的文章
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Boolean expression optimization in Java
Consider the following methods in Java: public static boolean expensivecomputation() { for (int i = 0; i < Inte…… -
Java – what is the difference between these two urlencodings of URL
Some queries encoded UTF - 8 I sent to the server did not return the expected results Namely http://direct.jthinkws.co…… -
Java – endpoint with OAuth: get the current ClientID
I just started using endpoints in Google App Engine, and everything seems to work well My API rejects non whitelist cl…… -
How to substring a string to the second point (.) in Java?
I have a string with many segments by dots (.) Separate as follows: I want to get a substring up to the second point, …… -
Java – type set is not universal; It cannot be parameterized
My eclipse faces this strange problem Type set is not universal; It cannot be parameterized with the parameter < in…… -
Java – how to create a new activity, I can choose to add a new project from the database?
I created the database after this tutorial, and I created a button in the main activity that takes the user to another…… -
Java – token “;” Syntax error on, {expected after this tag
Why is there a syntax error in this line (as shown below) package org.temp2.cod1; import java.security.*; import javax…… -
Java – WebSockets, play framework and actor
I need to inform all users about adding new records to the database > Application. Java – here I put the socket han…… -
Java – how to get content in Web crawl
Hi! I'm trying to implement this pseudo code for spider algorithm to explore the network I need some ideas about the n…… -
Java socket server lags behind two clients
I'm a newcomer lol to stackoverflow, but I've always relied on this website I have a question about the java socket se…… -
Java – Maven ‘deploy’ causes code repackaging (bad signature) after signature operation
I want to deploy an artifact to the sonatype OSS repository The signature is invalid when deploying with the following…… -
The override equals method to compare multiple fields in Java
What is the best way to rewrite the equals method in Java to compare multiple fields? For example, I have four objects…… -
Java – how to filter by entity class attribute in Hibernate
I use hibernate in Java to map classes to database tables I have a personnel list. Each item has many pets and each pe…… -
Is java – spring too complex for JDBC operations?
I've just seen spring's JDBC framework - it looks like a learning curve - and I still can't find the latest quick star…… -
Java – generate name arrangement and database
Using "generating all permutations of a given string" as a reference, I try to have my program (when a name field is d…… -
Java – images that need to select code from the camera and Gallery – applies to all Android phones
private void selectImage() { private void selectImage() { final CharSequence[] items = { "Take Photo","Choose fro…… -
Block / disable JavaFX 2 WebView right click
I am looking for a way to prevent / disable JavaFX scene. web. Right click in WebView More specifically, I don't want …… -
Java – static variables and methods
I encountered a class set like this: public class MyClass { private static boolean started = false; private MyCl…… -
Leiningen Java agents does not work in uberjar
In my leiningen project, I have the following configurations: :java-agents [[com.newrelic.agent.java/newrelic-agent "3…… -
Java – check if the file is open
I need to write a custom batch file renamer I've done most of the work, except I can't figure out how to check whether…… -
Java – how do I check the number of objects created in heap memory?
I want to see how many objects Java creates when running the program My intention is if I use the code string s = new …… -
Java – handling 401 errors (spring security)
I can handle 404 errors @ResponseStatus(value = HttpStatus.NOT_FOUND) @ExceptionHandler(NoHandlerFoundException.cl…… -
Java – manage MySQL partitions using hibernate
We are currently evaluating the use of MySQL partitions for our small applications The application is basically at the…… -
Java – what are the benefits of having multiple logger instances instead of just one static logger class?
So I checked the best practices on logging in Java (slf4j, log4j, logback, etc.), and it seems that the appearance of …… -
Java – cross platform desktop development
I need to provide cross platform engine / framework suggestions for desktop PC application development (windows, MAC, …… -
The Java – ini4j store method changes the comment character
I want to change the key entry in part of the INI file I use the ini4j library So I wrote the following code I can cha…… -
Java – can I add keys / values to a map in a map in one line of code?
I have HashMap 1, which contains five keys. All keys have hashmaps as the value I want to add key / value pairs to the…… -
Java – wowza authentication using external jars
This is the source code of jar: public class WowzaTesting { boolean authStatus = false; public boolean authen…… -
Java – get different results when rounding decimals
double radius = 5; double radius = 5; double area = Math.PI * Math.pow(radius,2); // System.out.println(ar…… -
Java – resource never closed in try with resources when method linking
try(InputStream in = url.openStream(); Scanner scanner = new Scanner(in).useDelimiter("\\A")) { try(InputStream in = u…… -
Java – error running calendar API sample code
Attempt to implement from https://developers.google.com/google-apps/calendar/quickstart/java Started Google calendar c…… -
java. io. Is filewriter designed for one-time use only?
I'm using Java io. Filewriter builds a program that keeps writing to the same file During runtime, whenever I need to ……