Recent Posts
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Java scheduled tasks (in Windows)
I have a problem. I want to schedule a specific Java application to run every x days, or every X minutes I really want…… -
Quicksort (Java) causes stack Verflow is in array length> 60k
My code works normally (as far as I know) until my input array size (a.length) is about 62000, at which time I get sta…… -
Java policy error applet alert
[aspectj:compile {execution: default}] [aspectj:compile {execution: default}] Current policy properties: mmc.s…… -
Declare parameter subtypes in Java interfaces and use subtypes in Java implementation methods
I want to declare a method in the interface, where the parameters of the method defined in the implementation class ca…… -
Java – how to set Maven for two separate projects that depend on the same jar
If you answer this question elsewhere, please blame me and point out the right direction I am new to Maven and try to …… -
Java – why reference the base class when I can access all methods by referencing subclasses?
I'm learning java concepts Anyone can give me the actual concept. Why do we have to assign subclass instances to base …… -
Java inheritance and composition (implementation stack)
I want to implement a stack in Java (using list interface: interface list) I want to implement it in two different way…… -
Java – why doesn’t the runnable jar exported from eclipse work?
I have a project that works well from eclipse Edit (it was not previously run with - jar): INFO: Loading XML bean deFi…… -
Java – complexity of code
What is the complexity of a program with only one loop? Is it log n? Solution Well, it really depends on what happens …… -
. Net – is there a textwriter subclass that triggers an event when writing text?
I wrote a method that accepts textwriter as a parameter (usually console. Out, but not necessarily) When I call this m…… -
Java: how to programmatically determine that a dataset does not follow a normal distribution?
In a java program, how to determine whether the data set I own follows a normal distribution? Is it possible? Is there…… -
Java – selenium’s eclipse lacks source code
Please refer to the attached screenshot When I hover over the following code: selenium.waitForPageToLoad("30000"); I r…… -
Java – eclipse link, JPA, Oracle, Weblogic, calling persist do not commit the database
I'm just starting to look at Java persistence (currently using eclipse's eclipse link default provider) Basically just…… -
Java API for calling rest services
Can anyone suggest a better open source Java API to call rest services? I also want to know if the restlet API support…… -
Java – how to test Guice singleton?
Guice singletons is strange to me First of all, I thought IService ser = Guice.createInjector().getInstance(IService.c…… -
Java – opengl for space simulator
Together with several friends, we started this Java based project independent of amateur platform for space combat sim…… -
Java – why do the StringBuffer and StringBuilder append methods discard the value returned by the super call
This is a question of curiosity public StringBuilder append(String str) { super.append(str); return this; } Ab…… -
Create hasmaps recursively in Java
I'm trying to create a new HashMap for each document I enter In pseudocode, I can think of something similar: For(each…… -
java – println(String s)vs println(Object o)
In my opinion, printstream Print (object x) and printstream Println (object x) and printstream Print (string x) and pr…… -
Use the “Java” command to run CentOS Jar file
I'm trying to run on my CentOS box Jar file, but it says "Java: command not found" What is the best or simplest way to…… -
Java: how do I close another JFrame when I open it?
My program starts with a picture with a text field in JFrame I want to close the picture JFrame and open another JFram…… -
Java – the most effective idiom for reading only one integer from a file?
Trying to solve Facebook's Puzzle "happiness hop", http://www.facebook.com/careers/puzzles.php?puzzle_id=7 I only read…… -
Java – is resultset thread safe
Is resultset thread safe? My problem arises because in my program, I have used different statements for each query. I …… -
Java – configure spring data sources for hibernate and @ transactional
At this time, I am using the drivermanagerdatasource with @ transactional annotation to manage transactions But all tr…… -
How to convert a string date with a full month name into a date object in Java?
How to convert a date with a full month name into a date object in Java? This is the sample I need to convert. Date: D…… -
Java – how to get the file system path of the context root of any application
I'm working on Web applications I'm in my JSP request Called on getcontextpath (), but strangely, I got the address / …… -
Java: regular expression replacement
I have this string: foo bar 567 baz Now I want to add string num:. Before each number So the result must be: foo bar n…… -
Java – why can a generic list be cast to its type parameter
Why does the following code compile? What's the meaning of this? //Connection can be substituted by any interface List…… -
Java – let selenium pass Htaccess popup login
I use webdriver (selenium 2) and Java on Linux I am using webdriver to automatically fill out the form and submit it I…… -
Java – what does this’ static ‘mean and why
public class tt { public class tt { static{ System.out.println("class tt"); } } This is the first time I have …… -
Java simple sentence parser
Is there any simple way to create a sentence parser in normal Java The parser should not only focus on the white space…… -
Java – the problem of compiling JUnit test classes with ant
I'm working on JUnit with ant build There was a problem integrating XML files My test class is in the same directory a……