包含标签：Java 的文章
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Java – what is the difference between T and T in the return type of a method?
I have a way, like this, public <T> T doSomething(Class<T> T) { return T.newInstance(); } I can do it like…… -
If I don’t know any of the frameworks involved, what methods should I use to understand large J2EE applications?
I started working in my company five or six years ago as a junior java developer. I started some J2EE programming usin…… -
Java – how to iterate over a Multimap in insertion order?
Using guava from Google, http://code.google.com/p/guava-libraries/wiki/NewCollectionTypesExplained New series How do I…… -
Java – FreeMarker – remove commas from milliseconds
Using FreeMarker, I want to display the date in milliseconds: ${mydate?long} But I get a comma separated millisecond a…… -
The Java – Weblogic management console is too slow
I have installed Weblogic 10.3 3. A simple domain is configured using the default configuration After starting Weblogi…… -
Collections. Binarysearch (list, K key) clarification Java
In view of the following declaration, it is taken from this Oracle Java Tutorial and related to the binarysearch() met…… -
Java – performance difference between post increment and pre increment operators?
In Java, does the use of post increment and pre increment operators have any performance impact? Example: i++ ++i Sol…… -
Java – using collections Frequency() prints some values
I have an array as follows: int[] array = {11,14,17,11,48,33,29,22,18}; What I want to do is find duplicate values and…… -
Java – why include class names when referencing static variables?
When doing some Java jobs, I answered a question by writing an instance method. In the method, I used some static fina…… -
Java – what does the syntax “final string… Args” mean / do?
This should be a fairly simple question I looked around and couldn't find any topic about this grammar, and "..." made…… -
Java – how to create a class that I can’t change and implement an interface?
I have a class from another closed source library, but I want to be able to use its interface The reason is that I don…… -
Java – ‘for’ loop can be replaced by ‘foreach’
My code is: ArrayList<People> people = new ArrayList<>(); // people.add(...); // people.add(...); …… -
Where can I find the Java source code for the Vigenere password?
In my application, I want to implement some encryption So I need the code for the Vigenere password Who knows where I …… -
Java – how does eclipse actually run JUnit tests?
I encountered a difference when running JUnit tests in eclipse and ant This is the scenario: Everything runs as expect…… -
Get image path JavaFX
I want to get the pathname of the current image loaded in my image object I have the following code: Image lol = new I…… -
Java – how do I limit the size of a table?
I have a SQL Server 2005 database I'm recording the data in the table I want to prevent the table data from getting to…… -
Java – how to ignore unit tests when conditions are met?
I wonder if there are comments or methods that can only execute tests if pre conditionoin is satisfied? Solution You c…… -
When the mouse clicks, Java draws a circle
I'm writing a program that draws a circle when I click the mouse So far I have written the following code import java.…… -
Java – calling a new thread inside is a constructor
Is it correct to create a thread and call its start () method in the constructor of the class? public class Server imp…… -
Java – how to “put” values into a HashMap using JSTL
I'm looking for key value pairing for HashMap using JSTL only Is that possible? I know how to retrieve key value pairs…… -
Java – the dropwizard does not record custom recorders to files
I have a dropwizard application. I configure the logger appender as a file, as shown below: logging: level: INFO …… -
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What does this class declaration mean in Java?
I just study trees and one thing I don't understand is class declarations: For example: class binarysearchtree < T …… -
Java – return files in spring MVC rest
I have the rest service code. The following code returns a file. Now the problem is that I get an original response in…… -
Construct unique numbers for strings in Java
We require more than 10 million strings to be read / written in the file In addition, we do not want duplicates in the…… -
Partition between integers in Java
I need to divide integers in Java, and the result should be a floating point number Can I use the / symbol? For exampl…… -
Java – use appbarlayout Behavior. Dragcallback to control the scrolling of the collapsed toolbar layout
I want to be able to enable and disable scrolling on the collapse toolbar Who can tell me how to use appbarlayout Beha…… -
Primitive data types and portability in Java
I quote Herbert Schildt's Chapter 3 data types, variables and arrays: What do his last two lines mean? How to specify …… -
Java – the problem of implementing removeAll for a custom object list
There is a scenario in my code where I need to compare two lists and delete the objects in the second list from the fi…… -
Java – get components from JList by clicking the location
How do I get components from JList by clicking on a location? I have my own list cell renderer, I insert some panels a…… -
Java – unable to load jdbc driver Why? (spring, dormancy)
I created a program (spring hibernate) through Maven two weeks ago, and now it has a problem loading the jdbc driver (…… -
Java – how do I configure the findbugs Maven plug-in to check only annotation violations such as @ nonnull?
I have implemented the answer to this question, so @ nonnull violation makes the build fail But the problem is, this i……