包含标签：Java 的文章
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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…… -
Java practice: returns the same object passed as a parameter
In the following code, isn't it bad that updatewithcontext returns an object with the same parameters? class SomeClass…… -
The problem of “while” in Java
I'm trying a few exercises in the Java programming book I have the following code: import java.io.*; import java.util.…… -
Java – why list Sort does not use the optional API
Java 8 introduces a new default method on the list interface to sort it Its signature is: void sort(Comparator<? su…… -
Java – buffered vs. unbuffered, which one is used?
Sorry, if this is repeated, but I can't find the exact answer to each type of best practice I want to know what is the…… -
Java – does FileInputStream already use buffers?
When I use FileInputStream to read an object (such as a few bytes), does the underlying operation involve: 1) Read the…… -
Java – spring 4 websocket remote proxy configuration
I managed to create a simple web socket application with spring 4 and stomp Please refer to my previous question here …… -
Java – start H2 database programmatically
I am writing a server - client application in Java. I need to implement a local database on the server. I decided to u…… -
Java – which data type or data structure to choose to calculate the factorial of 100?
I want to write a program to evaluate the factorial of a given integer The following basics I wrote the following code…… -
Is OOP – ORM a unique problem in object-oriented programming?
Object relational mapping (ORM) is a problem that must be solved in all applications that implement and use relational…… -
Java Sevlet Mapping. Welcome file list
On my web In the XML file, I have this <!-- WELCOME FILE LIST --> <welcome-file-list> <welcome-file…… -
Java – how many objects are created
I'm discussing how to use strings and stringbuffers in Java How many objects were created in each of these two example……