Java
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Linking Oracle code using JDBC
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Regular expression testing tool implemented by Java Swing
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Android bright screen and screen unlocking code
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Add / delete / modify / query MySQL through JDBC
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Android silent installation / background installation
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MD5 encryption Java tool class
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Android fillet image encapsulation class
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Android clipsquare implements square head cutting
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Android gets the real name of the downloaded file
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Java export tool class to prevent incomplete decimal display
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Java cookiestore class usage example
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Java uses NiO to read files
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Based on Commons net, FTP realizes the functions of creating folder, uploading and downloading
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Java – why not create a JDBC connection pool?
I'm developing a simple Java EE application with ear files containing jar and war files In the ear project under earco…… -
Java – how does Lombok generate code to an existing class?
I can use annotation processor to generate classes from scratch, but I can't modify Lombok - like classes I searched t…… -
Java – association between: webapplicationcontext of springioccontainer | ApplicationContext |
background After reading 1 2 3 4 5 6 links, I come to the following conclusions – As spring, MVC is designed in a stan…… -
Java – there is a “global” Ctrl (skip to error) shortcut in eclipse?
Ctrl. Brought me an error in the file But if my error view gives me more errors, is there a shortcut to open the next …… -
How to find the maximum value of a given element in a HashMap using java 8 streams
I have a product HashMap Every product has a price I know how to find the product with the highest price But using jav…… -
Java – how to merge wars into one?
In our company, we have several different modules built as separate wars Can I automate this process? For example, it …… -
Java – Maven exec plug-in classnotfoundexception
I am using the Maven exec plug-in to run a Java application from the command line. The command is MVN exec: Java I'm a…… -
Java – why call close() on resultset and connection instances?
When I no longer need to use instances of resultset and connection in my program, why call on these two methods What a…… -
Bring JPanel in front of other objects (swing) in Java
I want to load when the app process is running, so I use JPanel on JTree But when the user clicks JPanel, JTree will s…… -
Java – use okhttp to get HTTP status code
I'm using okhttp to get some website content However, I can't get the HTTP status code from the response My java code:…… -
Java – how to get the selected row index in JSF datatable?
I'm at index There is a database on XHTML <h:dataTable style="border: solid 2px black;" value="#{IndexBean.book…… -
Fast port forwarding in Java
I built a simple application to open the server socket. When connecting, it connects itself to another server socket o…… -
Java – parsing JSON objects and JSON arrays using gson
I have a JSON that is a single object or an array of the same object Is there any way to parse this data using gson, w…… -
Java – Convert byte [] to ArrayList
I have a byte [], which I get using object ArrayList Can someone tell me how to convert my byte [] to object ArrayList…… -
Java – how to attach to AES encrypted files
I'm writing some recorders that generate encrypted log files Unfortunately, cryptography is not my strong point Now I …… -
Compiling java files programmatically
I know this has been asked a lot, but I still don't have a good solution. I still don't understand some parts So I nee…… -
Java – multiple clamps in one body or multiple bodies?
Suppose I want to create 1000 or even 5000 static body lines on the screen What I want to know is the difference betwe…… -
Email – does JavaMail support server push?
Does JavaMail support push notification of new e-mail through the server? If so, where is the document? If not, is the…… -
Java – spring security MVC: same @ requestmapping, different @ secured
Suppose we have an API endpoint configured using spring MVC and spring security We want to be able to handle @ request……
