Java
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Java – does a 32-bit process need more memory when running on a 64 bit system?
I have a Java application that is quite memory hungry If I run the same application on 64 bit Windows XP Professional …… -
Java – can I determine whether the data is in English or Chinese?
Can you determine whether the data is in English or Chinese? Solution For example, this can be done using statistical …… -
Java – how to hide public methods?
There is a method in my static state machine that is used only once when my application starts for the first time This…… -
Java libraries with more data structures
Anyone can point to some excellent Java libraries (jars), which have more data structures than part of the standard Ja…… -
Concurrency – “go is a concurrent Lang” what does that mean?
Go is a concurrent lang. what does that mean? Does this mean that it is a C / C + + / Java succedaneum? Solution A con…… -
Java – how to get to the middle of a singular linked list in an iteration?
Recently, I was asked a question, how do we get to the middle of the list in an iteration in a separate linked list A …… -
Executing UNIX system commands from Java problems
I encountered a strange problem when executing system commands from Java code Runtime. getRuntime(). exec(“system_prof…… -
Java – how to create an optional binding in Guice?
This is my client: @H_ 403_ 8@ @H_ 403_ 8@ class Client { @Inject(optional=true) Service service; } Sometimes we d…… -
Java – swing component: vertical text problem
If I have a button like the one in this image: http://www.freeimagehosting.net/image.php?4cd775814c.png How can I make…… -
Java – is there a real-world project using clojure that uses multi-core systems that I can see?
Is there a real-world project using clojure that takes advantage of the multi-core system I can see? I think if clojur…… -
Advantages and disadvantages of organizing packages in Java projects
As the project I'm working on gets bigger and bigger, I'm beginning to be very uncertain about subcontracting classes …… -
Java – move graphic path object
Especially in Java and Android, how to convert the path object to 100 pixels? As in C #, I will use the following code…… -
Downloading CSV files programmatically using java
Scenario: the website I use to study stock data has a link on the page to export the data to a spreadsheet The format …… -
Read / write int on X86 machine without lock
Suppose in a C program, I have a p thread running on a 32-bit machine and int Max – a shared 32-bit integer Each threa…… -
How to append to the end of a file in Java?
... ... Scanner scan = new Scanner(system.in); System.out.println("Input : "); String t = scan.next(); FileWriter kir…… -
Converting ANSI characters to UTF-8 in Java
Is there any way to convert ANSI strings to UTF using Java I have one using readutf & amp; Custom serializer for T…… -
Java Concurrent modification exception
I wrote the following code, resulting in concurrent modification exceptions How can I prevent it? Our idea is to escap…… -
Java – why do I need synchronization?
I'm trying to fill some shameful gaps in my knowledge of Java threads, and I'm reading Java concurrency in practice in…… -
Can I rename implemented methods in Java?
I have a class that implements the interface, and one of its methods is called onclick Is there a way to implement onc…… -
Java – apt and AOP use Maven in the same project
I have to use annotation processing (APT) and AspectJ in the same Maven project Both are suitable for me, but I need t…… -
Append text in Java’s jtextarea
There is something wrong with my text area I use jtextarea1 Append ("smart and interesting"); Add text First attachmen…… -
java. Lang. runtimeException: facescontext not found (JSF 1.2 primefaces Tomcat 6)
See English answer > java Lang. runtimeException cannot find facescontext 1 SEVERE: Servlet.service() for servlet j…… -
Java – questions about polymorphism and overloading
I try to understand the concepts of polymorphism and overloading I have the following code as an experiment However, I…… -
Java – findbugs wants readObject (…) private serialization. Why?
I run findbugs on some code and it says that the readObject (...) method must be private to be called for serializatio…… -
Java – get request parameters in @ viewscoped bean
I have a list from which the user can select "PQ" (link list) When clicking or otherwise entering the browser, the mai…… -
Java – MySQL timeout – should I set autoreconnect = true in the spring application?
After a period of inactivity on my website (using spring 2.5 and MySQL), I received the following error: org. springfr…… -
How to read text files into jtextarea in Java Swing
This is my code: try { String textLine; FileReader fr = new FileReader("ad.txt"); BufferedReader reader = …… -
How to annotate fields with @ ID in EJB 3 (JPA) and Hibernate?
The title is self explanatory I'm glad to hear about the solution, thank you Solution So far, the method used is short…… -
How to set a specific location in a string in Java?
I have a string called str str = "hi john"; Now I want to set J char to g. how can I do this? Solution You cannot modi…… -
A Java method class with enum
I have an enumeration that looks like public enum MyEnum { myValue { @Override public String myMethod(Stri…… -
. Net and Java EE middleware?
Someone can compare Net and Java EE middleware (advantages / disadvantages) If not, at least provide a useful link for…… -
In Java, why do you put parentheses before the aray name?
I was told int[] numbers and int numbers[] Is equivalent I've only seen the former If so, what is the motivation for w……