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When I try to connect my gradle project with sqlite database, I have an error: Exception in thread "main" java.lang.Error: java.io.FileNotFoundException: null\lib\tzdb.dat (The system cannot fi...
How can I create an InputStream object from a XML Document or Node object to be used in xstream? I need to replace the ??? with some meaningful code. Thanks. Document doc = getDocument(); InputStre...
I am writing a program which will add a growing number or unique strings to a data structure. Once this is done, I later need to constantly check for existence of the string in it. If I were to use...
I've generated a line chart using Apache POI. I need to change the default colors I got in the chart. Can I use RGB codes to define specific colors to each line? My code is as follows. Drawing dra...
Programming in Android, most of the text values are expected in CharSequence. Why is that? What is the benefit, and what are the main impacts of using CharSequence over String? What are the main dif...
I´m having issues while trying to execute a unit test using PowerMock with Mockito. I need PowerMockito to mock an static method. These are the versions I´m using: PowerMock 1.6.2 Mockito 1.10.19 JU...
Is there a shortcut in NetBeans to highlight a block of code and comment/uncomment it?
In java, you can have inner classes. I'm curious from a design perspective if there are any benefits to this. My initial thoughts are that having a separate file with the class is cleaner in separat...
Given a class Foo and a property bar, neither of which I know at compile time, I need to repeatedly call the getter Foo.getBar() many, many times. Suppose I have: Method barGetterMethod = ...; // Do...
Is there a event on how to count the inputted character in a JTextField?
I have a series of components underneath each other in a JPanel set as a GridLayout. I need to temporarily hide the components but setVisible(false) doesn't cut it, because there is still an empty gap...
This is my code to determine if a word contains any non-alphanumeric characters: String term = "Hello-World"; boolean found = false; Pattern p = Pattern.Compile("\\W*"); Matcher m = p.Matcher...
Spring version 4.2.0, Hibernate 4.1.4 Here is my Controller function: @RequestMapping(value = "/mobile/getcomp", method = RequestMethod.GET) @ResponseBody public List<Company> listforCompanies...
The JAI setup is quite tedious, involving multiple jars and environment variables. It would aid the project's portability quite a lot if I could add it as a regular Maven dependency. The POM snippet...
When overriding a method in Java is it possible to call the "original" one. For example: public class A extends B{ @Override public void foo(){ System.out.println("yep"); // Then execute...
I want to use Selenium WebDriver on a webpage that I have on my hard disc. I've tried to something like: selenium = new WebDriverBackedSelenium(driver, "C:\\...dispatcher.html"); ...instead of the...
I'm trying to achieve second level cache in my Java EE project using Hibernate. My Hibernate version is 5.1.0.Final. I've created a table employee in my MySQL database. I've included hibernate-ehcache...
I made a large program in Eclipse Java Mars on one computer which worked fine. I exported the program as a runable Jar-file and running it gave no problem whatsoever. Even when I exported the entire p...
i have created a runnable jar for my Selenium webDriver suite. now i have to test this in multiple base URL,As the baseURl will change according to the need. Can somebody please guide me through this....
Though it's probably reccomended one uses and IDE for coding advanced java projects, I personally prefer running almost entirely command-line (using gedit as a text-editor). So please don't just tell...
Does anyone know how to disable this? Or how to get the text from alerts that have been automatically accepted? This code needs to work, driver.findElement(By.xpath("//button[text() = \"Edit\"]"))....
I understand WHY we need Abstract Class in Java - to create sub-classes. But the same can be achieved by concrete class. e.g. Class Child extends Parent. Here Parent can very well be abstract & co...
I'm trying to play mp3 audio on Java, and one of the forms. I belive is JavaFX, and all goes OK, until I try to play the audio. This is the code: import javax.sound.sampled.AudioPermission; import j...
How do I get the current date and time in Java? I am looking for something that is equivalent to DateTime.Now from C#.
I'm trying to use the fabric8io/kubernetes-client in a simple example on my local minikube cluster where I get an IP of a pod import io.fabric8.kubernetes.client.Config; import io.fabric8.kubernetes...
I'm having problems with spring boot. I got the error Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled. 2019-09-22 10:16:18.954 ERROR 13...
I created a signIn servlet: @WebServlet( name = "SignInServlet", description = "check email & pass", urlPatterns = {"/authorization_signin"} ) public class SignInServlet extends j...
I am using slf4j logger in my controller class, even though my application.properties has the following entries: #logging.level.*= DEBUG logging.level.org.springframework.web=DEBUG logging.level.com....
I want a class that I can create instances of with one variable unset (the id), then initialise this variable later, and have it immutable after initialisation. Effectively, I'd like a final variable...
Trying to convert a date which is in String format to Java LocalDateTime. private DateTimeFormatter dateFormat = DateTimeFormatter.ofPattern("dd/MM/yyyy HH:mm"); private String caseStartDate = dateF...