here ssa_msg_daily contains blank or null values in the table,so while compiling i am getting error as Exception in thread “main” java.lang.NoSuchFieldError: RETURN_NULL_AND_BLANK occurs @ XSSFWorkbook workbook = new XSSFWorkbook(); how can i handle this situation and i am using the resultset to convert to spreedsheet using apache poi Answer You’ve got a classpath issue. You have a mix of
Tag: java
org.json cannot be resolved to a module?
I’m learning Java. To read JSON in my application, I downloaded this JSON library; which is an automatic module. I included that library in my module descriptor like: My settings.json in vscode: How do I include the jar file in my module and import it into my Java file? Screenshot: Answer TL;DR — As this unresolved ‘Cannot be resolved’ errors
SpringBoot cache not working for non parameter methods
I have one spring boot application pom.xml <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www….
spring boot – displaying object data from controller in JSP
I have a User class, two JSP and one controller. I want to register a user, store their details in a database (H2) and display user’s name after registration. This is my home.jsp – This is my controller – This is my afterRegister.jsp – The object gets added to the database. What am I doing wrong when it comes to
Kotlin, Java 8 and Sonar coverage showing as 0
I have a kotlin project using Java 8 and I use Sonar to measure code coverage I am using the latest version of Sonar and noticed the coverage has gone down due to changes in the openjdk. My tests are using Mockito and PowerMockito. Some tests are failing due to reflection errors. When I add the following jvm args –
Eclipse(2020 09) Java Installation issue || Windows 10 OS
I am new to Java programming. I have installed Java SE 11 (LTS) (JDK 11.0.8) on my OS. Note that former Java also has jre folder in it. But Java 11 onward there come only JDK folder. So, I have set JAVA_HOME environment variable as well as, included jdkbin in path as well. By checking on cmd java version shows
problem with equals() method when used after toString() method
When I tried to take two strings as input to a function and check whether they are anagrams, I am getting the wrong output. I have written the following code. The sample input I have taken is s = “anagram” and t = “nagaram” . When checked, both the char arrays are printing the same value, i.e. But my output
dataSnapshot could not get parent push key value
I want dataSnapshot to check if “month” exists in its parent’s “summary”. But dataSnapshot is returning that it does not have “month” in “summary” My Firebase Database: I want to check the value (blue line) from its parent(red line) My Firebase Database Answer The following line of code: Returns the key of the node on which the reference is pointing
Java 8 find element matching in a list of objects where each object has another object
I have two classes: I have a List<SampleClass> sampleClassList. I need to find the find element in the list which has a particular labelName and labelValue using Java 8. If I need to get the SampleClass object based on testString I would do, Now that the filtering involves Label class, I am unable to figure out how to do that.
Activity or Fragment for a SearchView?
I´m doing my final degree project and I have chose to develop and Android app using Firebase Firestore, the idea it´s cool because I´m learning how to program on Android, but on Java. So, I have develop the SplashScreen, Login form, SignIn form and able to connect succesfully with Firebase but right now I´m having a problem about thinking the