包含标签:Java 的文章
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Specifies the generic type in Java from the class object
Why is this wrong: Class<? extends Number> type = Integer.class; ArrayList<type> = new ArrayList<&g…… -
How does a java program run without defining the main method?
I'm looking at some java source code and notice that the main methods are not defined How does Java compile source cod…… -
Java – convert data URL to bufferedimage
I have a data URL for an image file and must pass it to another function Along the path from the data URL to the buffe…… -
Java: copying arrays of non basic types
What is the preferred way to copy non primitive arrays in Java? How about performance issues? Solution The old school …… -
Java Preparedstatement UTF-8 character problem
I have a prepared statement: PreparedStatement st; In my code, I try to use the st.setstring method st.setString(1,use…… -
Whether guava has command line parameter parser [closed]
Does gauva have its own command line parser? Or should I resort to jcommander / args4j / Apache cli or something? Solu…… -
Java – “the first sentence should end in a period of time.”
Java checkstyle puzzles me package pmain; /** * Some text here. */ public class Main { } This is literally all th…… -
Java UTF-8 to ASCII conversion and supplement
We accept the input of various national characters in UTF-8 string, and we need to convert them into output ascii stri…… -
Java – how to create a specific date in HSQLDB?
I need to create a high date in HSQLDB. The solution does not include me I need something similar Date(9999-12-31 0:0:…… -
Java – write a mat file instead of MATLAB header files and libraries
I have some data that I want to save to mat file (version 4 or 5, or any version for this) Capture: I don't want to us…… -
Java – how to speed up the build process using Maven tools
I use Maven as a build tool At present, I am doing the following construction Right click on the project - >maven c…… -
Java – can I press the jsup simulation button?
You can use jsup to submit a search to Google, but instead of sending your request through "Google search", you can us…… -
Java NIO Files. Createfile() failed with nosuchfileexception
I tried to put some core files in the dev - Test - prod setup Basically, if the document is newer, it needs to be copi…… -
Java – certificates need to be ignored when using resttemplate
I am sending a request to the following address The certificate is invalid. I want to ignore it I wrote the following …… -
Java – use generics in parameters of exceptions
I'm trying to store a collection of generic objects in exceptions and have trouble figuring out generics Specifically,…… -
Java – how to start GWT super development mode
There is already an answer to this question: > 5 super dev modes in GWT Now I can start using development mode, the…… -
The right way to use varhandle in Java 9?
I spent a lot of time investigating some new features of Java 9, but I didn't find any useful and practical examples C…… -
Java – access jar resources
I have a jar file and resources (mainly configuration cache, log, etc.) that I want to distribute I have a problem wit…… -
Java – spring welcome file list mapped correctly
I know that in spring, I must define the welcome file, which should be outside the WEB-INF folder, so I define it as f…… -
Java swing – running on EDT
I have a few questions about swing and use EDT to update the GUI I've just started reading this, so I'm a new beginner…… -
RSA encryption in Java: cross platform issues?
situation I am using RSA encryption in Java I am loading the data on HTC saphire (32b) developer's mobile phone with A…… -
Java – can Maven generate exe files and Mac OS X applications?
Let's say you created a java desktop application with jars and some dependencies and possible license text files I kno…… -
MediaPlayer. Java. In the displaying () method lang.IllegalStateException
public static MediaPlayer mp=null; public static MediaPlayer mp=null; public static void playGeneric(int name,final Im…… -
Use “this” and method (in Java)
What about using the "this" method in Java? Are there selective or mandatory situations? The only thing I encountered …… -
Does Java – Maven dependency plugin use the same other types of artifact resolution as other mavens?
If I use the Maven dependency plugin, I cannot use the version range In addition, it seems that the version of a defin…… -
Java EE – compare openejb with GlassFish
Can we replace GlassFish with Tomcat / openejb for lighter applications? What are the limitations of openejb instead o…… -
Java – notificationlistenerservice: NullPointerException on getactivenotifications
According to this tutorial, I try to implement notificationlistenerservice in my application: http://www.kpbird.com/20…… -
How to call C from Java?
I want to call a C method from Java I read about JNI, but I didn't get how to get all the library files. I should keep…… -
Java – Reference “this” when calling the super constructor?
I have a Class A and write a subclass B. only one constructor is parameterized B must call this super constructor of A…… -
java 7 uuid bug?
I believe I may have found a UUID multithreading error in Oracle java7 update 5. I wonder if anyone can confirm it wit…… -
Java – how do I get a subclass recorder?
I have a subclass and a superclass In superclasses, I have a way to record something When I create an instance of a su…… -
Java – nested bounded wildcards
When I try to compile the following code: LinkedList<List<? extends Number>> numList = new LinkedList<L……