包含标签：Java 的文章
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Java – creates an ArrayList on each index of the list
I have a list like this public List<String>[] Depth_List; Now in each index of this list, I want to create and A…… -
Java – a non recursive method for calculating a binary tree representing an arithmetic expression
As mentioned in the topic, I need to describe a method for evaluating binary arithmetic expression trees without recur…… -
Java – Best Practices for string instantiation
So why don't we use 'new' to create them? 14 In addition, whenever you want to instantiate a string object, do not use…… -
Gregorian calendar returns an incorrect day in Java_ OF_ WEEK
This Code: Calendar calendar; calendar = GregorianCalendar.getInstance(); calendar.set(year,month,day); week_day = cal…… -
How do I convert strings to operators in Java?
See English answers > is it possible to pass arithmetic operators to a method in Java? 8 import java.io.*; import j…… -
Java – jtextfield listener when modifying textfield text
I know how to add a text listener on jtextfield, trigger when the text changes, and modify the text of jtextfield duri…… -
Java – playframework module and routing
I use play! Frame 1.2 five I have a module 'business model' In conf / routes: I have a controller: package controllers…… -
Java temporary file multithreaded application
I'm looking for a simple way to generate a temporary file that always ends with a unique name on a per JVM basis Basic…… -
Java – how do I change the contents of the JScrollPane significantly each time I call the actionlistener?
Every time I call the action listener, I want the JScrollPane to change its list to a completely different list I'm no…… -
What is the difference between JPDA and JMX?
I'm trying to write an application monitoring tool, and I met two standards, JPDA and JMX They seem a bit like me Any …… -
Java – use JTable to display the slow performance of streaming data
The code I referenced is proprietary and requires a multicast server, so I cannot publish sscce code snippets I unders…… -
Java – create domain in Amazon simpledb
I'm using Amazon simpledb and trying to create a database using the following tutorial Basically, it throws an error: …… -
Adding properties from Java to groovy objects
I want to be able to add properties to an instance of a string object using the metaprogramming capabilities of groovy…… -
Java – Android VM heap size
I can't understand what Android App heap size is Runtime rt = Runtime.getRuntime(); long maxMemory = rt.maxMemory(); L…… -
Java – how do I know at run time if a jar file already exists in the classpath?
If a particular jar file is already in my classpath, what is the best way to know at run time? If this is not the case…… -
Run java code after method returns?
I have a web service based on Java classes Whether the code can be run after the confirmation message is returned in t…… -
Java – Android loadermanager confused with cursorloader
I tried to convert my Android application to use loadermanager and cursorloader Basically, I have a SQLite database wi…… -
Java – how do I get all singleton instances from Guice injector?
Is there a simple way to enumerate all singleton instances that Guice injector has created? Or another way to get all …… -
Java: match regex and replace each character
I have a string, for example: There exists a word *random*. Random will be a random word How to replace each random ch…… -
How do I get a source object from documentlistener (documentevent)?
See English answers > how to find source component that generated a documentevent public void removeUpdate( Documen…… -
Java – find by object ID in Jongo
I know this question is very basic... I'm sorry I can't use Jongo to make an 'ID by ID' for Mongo I tried Iterator<…… -
Java – @ get can define consumption content type for jax-rs implementation?
I've been trying some examples on jaxrs (Jersey in this case) Here is my example stub implementation: @Path("stubservi…… -
Java – a try catch scenario – is it used correctly
I'm looking for a code base where the domain model consists of many nested member variables Consider this situation pr…… -
Java – advantages of PBE over DES, 3DES and AES
In addition to DES, 3DES and AES encryption technology, I also implemented PBE Compared with the other three, I need s…… -
Should our Javadoc classes extend abstract classes?
Suppose I'm writing a class "mywork" that extends the abstract class "work" Now, suppose that all the methods I need i…… -
Java – primefaces P: FileDownLoad with data table
I have a data table that returns all the files in the folder, and I can download the file using the primefaces P: File…… -
Validate multiple images using approvaltest
I have a way to generate some images (1. JPG, 2. JPG...) and write them to the file system I want to verify the result…… -
Java SWT link widget – how do I delete hyperlink underscores?
I know we can use: setText("<a> href="url"> Link </a>"); Create a link But this is emphasized I want a …… -
Java – get the correct conversion object from HashMap
I am developing an application with multiple systems (in my example, the system is a loadable component in my applicat…… -
Java – convert resource / stream to file
How can I do this? File myFile = getFile(this.getClass.getResourceAsStream("test.txt")) or File myFile = getFile(this.…… -
Why is’ invokespecial ‘used to call “methods” in Java?
Why is invokespecial used to call methods in < init > java? I've read it in many places, but I can't understand …… -
Java – throw an exception on a method call
How to throw and unsupportedoperationexception on a method? So, if I have an Iterable object and I try to disable the ……