包含标签：Java 的文章
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GUI Java program – drawing program
I've been trying to figure out what's wrong with my code Our idea is to create a small paint program with red, green, …… -
Java – expression parsing and evaluation Library
I am looking for a parsing and parsing Java library Evaluate expression I searched and tried some libraries like Apach…… -
Java – get NullPointerException when parsing JSON
To me, everything seems right: get the result object, get the series array, get the object at the index, and get the d…… -
Java – core dump cannot be written Minidump is not enabled on the client version of windows by default
I have this Java class, and I try to use eclipse Mars 1. Ide operation This is the code: import com.xuggle.mediatool.I…… -
Java – OO game design issues
I'm writing a simple game in Java, but I'm trying to be 'right' with a beautiful and clean design without hacker attac…… -
Java wildcards behave strangely when classes are generic
I think I have some good understanding of Java generics This code is not compiled. I know why We can only pass the typ…… -
Java – string constant pool and intern
I've tried to understand the concepts of string constant pool and Inter in recent days. After reading many articles, I…… -
java – HttpProtocolParams. Setuseexpectcontinue (params, false) – when is it set to true?
I'm using org apache. http. impl. client. Defaulthttpclient retrieves XML from WebService and tries to determine wheth…… -
Java – use application Properties is localized to logback.com in spring boot Location of XML
How to use application Properties customize logback in spring boot Where is the XML? I tried the following, but it did…… -
Java – static variable vs volatile
I'm just asking questions from a thread perspective... I may have answered many times, but please help me understand t…… -
Conflicting overloading of Java – hamcrest matcher
The matcher isiterablecontaininginanyorder has two overloads on the static factory method containsinanyorder (both hav…… -
Java speed access array index and temporary variable
What is java faster Directly access the array index multiple times, or save the value of the array index to a new vari…… -
Java – how do I use garbage collection to delete files?
Hi, I use a lot of temporary files in Java. My problem is that they won't be deleted There is no need to implement my …… -
Java – why does the time zone mode “oooo” not display the full GMT 00:00 offset format?
Is this an error or a function? Datetimeformatter Javadoc clearly states that when I use oooo mode in the formatter, I…… -
Check whether the Java object is an array type in JNI
Suppose I have a MyClass class in Java, is there any way to check that the jobobject is MyClass [] [] in JNI? My initi…… -
Java – hibernate cascading delete does not work as expected
I'm using hibernate 3 and trying to delete records in the database, and deletion doesn't work properly Pattern hiberna…… -
Compile Java and xStream. XML with gcj (exception: cannot create xmlpullparser)
I am strengthening a client, which is part of a larger project Due to insufficient speed, I was forced to switch to CN…… -
Innovation / security method of data protection based on shared key in Java
I have been trying some basic encryption techniques in Java (my preferred programming language), and there is a simple…… -
Java – Stax parsing – resolves child nodes based on the selected parent node
I need to parse a huge XML file on the server and send it to the client Solution >No, you can't skip the subtree of…… -
Java – can I nest classes in enumerations and create ArrayLists in enumerations?
I'm trying to do that I have a week's schedule I use enumeration because weekdays are constant public enum WeekDay { …… -
Java – JfreeChart: you need to delete the vertical white line in the stackedareachart
I created a stacked area map A vertical white line appears in the chart I need to remove the vertical white line How c…… -
Random identifier in Java
I want to generate random identifiers in Java The identifier should have a fixed size and the probability of generatin…… -
Java – opencv mat processing time
I want to know whether the SRC (source) and DST (destination) of OpenCV function have different variables that will af…… -
Is general SQL query in Java feasible?
If I have a method to create an SQL query, it is as follows: public List selectTuple() { boolean status = true; …… -
Is java 1.7 stable or beta?
I want to switch from 1.5 to Java 1.6, but I think it's best to use 1.7 instead of 1.6 Solution We are currently using…… -
Looking for a java code generation library
What is a "good" java code generation library? Solution There are several libraries with various functions and ease of…… -
Java – set password in sqlcipher
I want to create a new encrypted database with sqlcipher. Because of the following link, I don't really explain how to…… -
Java and python processes can exclusively lock the same files on Linux
I have a Java application and a python launcher Java applications use this code to lock files to avoid multiple starts…… -
Java – do not generate log files until Weblogic is restarted
I am developing an application deployed on Weblogic 10.3 It is packaged as ear and contains a module The application i…… -
Generics (and wildcards) in Java
I'm reading a book on Java. It tells me that the following two pieces of code are equivalent: public <T extends Ani…… -
java – file. canWrite(); file. canRead(); file. canExceute(); Although my file / directory does not have access rights, it always returns true
I need to check the permissions of the files / directories I use //filePath = path of file/directory access denied by ……