I am currently working on the automation of Excel, and add such I have made a good use of the Apache POI library. As I have so much data stored in my excel workbook in various columns, that I’m trying to create a pivot table. Is there any way to create Pivot tables using POI ? My requirement is that
_XReply() terminates app with _XIOError()
We’re developing some complexed application which consists of linux binary integrated with java jni calls (from JVM created in linux binary) from our custom made .jar file. All gui work is implemented and done by java part. Each time some gui property has to be changed or gui has to be repainted, it is …
How do I configure log4j to send log events to java.util.logging using JULAppender?
I am familiar with the java.util.logging (JUL) framework, I use it extensively. Recently, I started using a library that does its logging through log4j. When I start my application I now get the following printed on the console: It appears that log4j has a solution for this: JULAppender which will send everyt…
Uniform random distribution in java
i’m generating Random values with range of 5.0 – 9.0, are the numbers generated still uniformly distributed theoretically ?? and how to implement the histogram, i mean what values we need to implement the histogram ?? i’m zero on math .., pls help me Answer You are on the righ path- scaling …
Error parsing data org.json.JSONException: End of input at character 0 of – Android
I’m developing a test Android application that must display some data from a mysql db. Here my logs: Here the class JSONParser.java Here the class I use to display the selected data: Here the php file: In addition, here the main Activity: I read various thread around the internet about this error, but i…
java.lang.NoSuchMethodError: org.springframework.core.annotation.AnnotationUtils.isInJavaLangAnnotationPackage(Ljava/lang/annotation/Annotation;)Z
Am very new to spring and JUnit. Am trying to run a simple JUnit test case for spring service class, but it fails and I get this exception.I didnt write any test yet, but trying to run through before implementing. Using tomcat v7.0. And I dont think have any spring conflicting versions. Please help. Where els…
Java Server Socket transfer String to web socket
My goal is to set up a connection between a Java Server Socket and a browser (using web sockets). So far, the connection works, but my data streams do not. I would like to send a String from the …
Functional style of Java 8’s Optional.ifPresent and if-not-Present?
In Java 8, I want to do something to an Optional object if it is present, and do another thing if it is not present. This is not a ‘functional style’, though. Optional has an ifPresent() method, but I am unable to chain an orElse() method. Thus, I cannot write: In reply to @assylias, I don’t…
Websphere liberty profile error: 404 SRVE0190E
What could be the reason for the error: Error 404: SRVE0190E: File not found: /SimpleServletPath I am deploying in websphere liberty profile server. I can’t reach my admin console login page I can reach my welcome page on my websphere liberty profile server but can’t do so after creating a servlet…
Finding closest number to 0
I have an array of integers, and I need to find the one that’s closest to zero (positive integers take priority over negative ones.) Here is the code I have so far: Currently I’m getting a result of -2 but I should be getting 2. What am I doing wrong? Answer Sort the array (add one line of code) s…