包含标签：Java 的文章
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Java – use factory pattern for classes with different parameters
I have a very simple factory that takes enumeration as one of its parameters to determine the type of object that shou…… -
FileNotFoundException when loading freemaker template in Java
When loading freemaker template, even if the template actually exists in the path, I receive a file that can't find ex…… -
Java – can I start / stop Tomcat using the keyboard shortcut in eclipse?
I tried to make eclipse as mouse - free as possible I can't find the key binding for quick start and stop server in ec…… -
Java – a network that shuts down ports at school
I teach an introductory programming course in high school. I'm providing a network project for my students I think it …… -
Downloading files from the Internet using Java: how to authenticate?
How to download and save a file from Internet using Java? Using the code published in the last comment, I get this exc…… -
Java – why is the last number wrong?
Why output the last numeric error code: public class Test { public static void main(String[] args) { Syste…… -
Java – how to organize classes and packages
How do you decide what a package name should be, what classes should enter and what packages? I'm working on a project…… -
Java – data viewer for App Engine development server
Google AppEngine @L_ 419_ 0 @ use embedded database to simulate Google's back-end database It can create a file on the…… -
How to express numbers with scientific symbols in Java?
There is already an answer to this question: > 5 format double value in scientific notation 3.30 x 10ˆ23 One elemen…… -
Java – how to find the “last page” in the view pager Or total “views” Android Development
Thank you for your advanced help Sorry, if this is a very stupid question, but I can't find anywhere else Fragment f =…… -
Function interface in Java 8
It's hard for me to classify why lambda expressions can be assigned to some functional interfaces instead of others Fo…… -
Java: File Rename detection
Is there any way to use java to detect file renaming? (NiO's watchservice API or any other) Solution Take a look at jp…… -
Java – attach textview to recyclerview
I realize that the following is incorrect, but I think you can treat it as pseudocode I want to know how I attach an o…… -
Java – can there be any hint that I object to type Equals (incompatible type)?
Is there any tool to remind me not to use the following code: if ( someClass.equals( someString )) For example: if ( m…… -
Java – how to parse joda time in this format
I convert the datestring of yyyy MM DD HH: mm: SS in JSON format into the code and save it to POJO DateTimeFormatter f…… -
Java – volatile references to mutable objects – updates to the object’s fields are visible to all threads
... no additional synchronization? The following tree class is intended to be accessed by multiple threads (it is a si…… -
Java – htmlunit: ultra slow execution?
I've been using htmlunit It suits my requirements, but it seems to be very slow Goto Google page Enter some text Click…… -
Java – spring security and custom authenticationfilter with spring startup
I have a custom authentication filter that creates a preauthenticatedauthenticationtoken and stores it in a security c…… -
Java – passing space delimited system properties through shell scripts does not work
I have this bash file: #/bin/bash PROP="-Dprop=foo bar" java $PROP -jar Foo.jar Therefore, what I want to do here is…… -
How to calculate the file size from the URL in Java
I'm trying to get a bunch of PDF links from web services. I want to give users the file size of each link Is there any…… -
Java – will the result of modifying getter affect the object itself?
I have a question about using getter methods in Java My question is: Will the actual array list object be modified ("t…… -
Java – Android broadcastreceiver onReceive updates textview in mainactivity
In mainactivity, I have a textview: textv1 I also have a method in mainactivity to update the text view: public void u…… -
Java – Mozilla rhino tutorial
Any one can provide a good tutorial for Mozilla rhinoceros What I want to do is use JavaScript to validate the form in…… -
What is JMX Net equivalent?
Is there one Net is equivalent to monitoring and management - similar to JMX? Solution You can find it in codeplex (ne…… -
JSF – how is it different from Java facelets?
See this When to use < H: head > instead of < head & gt;??? I've seen that primefaces can't work with <…… -
All possible combinations of two vectors while maintaining the order in R
I have a vector that says vec1, and another vector vec2 is as follows: vec1 = c(4,1) # [1] 4 1 vec2 = c(5,3,2) # [1] …… -
Java – what is the time complexity of this sort method?
I wrote this course: public class SortingObjectsWithAngleField implements Comparator<Point> { public int co…… -
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 – 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.…… -
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: 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?…… -
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……