I’m having problems trying to open an XLSX file with Apache POI. My code: Exception thrown: Background: Running JDK 7 on MacOS X (Mavericks) Using NetBeans Imported jars (all from Apache POI binary distribution): poi-3.11-20141221.jar poi-ooxml-3.11-20141221.jar poi-ooxml-schemas-3.11-20141221.jar commo…
how to define an array without a defined length of it
The question is: get a score of 10 peoples; then you need to ask each one with a score higher than 80 if he would want to continue studying ‘y’ for yes and ‘n’ for no. Next you need to get their location in the array so if person number 5 array[5]=90 and answers ‘y’ it will…
Spring junit tests with couchbase
I have some Services that should get documents from couchbase. Services: Also I have DocRepository interface with necessary methods and views on couchbase server. When I run my app and call Services its work fine, but I need tests for this Services. Tests: Running tests successful only in 90%. And another mom…
Java access bean methods with LambdaMetafactory
my question is strongly related to Explicit use of LambdaMetafactory in that thread, some very good examples are provided to use the LambdaMetafactory to access a static method of a class; however, I wonder what is the equivalent code to access a non static field of an existing bean instance. It seems really …
Android Null Pointer Exception for onclick listener
The following code is giving me null pointer exception even though I can’t find anything wrong with the code. Tried commenting it out and it seems to be working. But still not able to find out what is wrong with the code? tried my own trouble shooting of commenting out the code and such and right now th…
json date format in spring-boot
I am using spring-boot and I have an entity class defined something like this When this class is converted to JSON, the field gets converted to the following string representation I want to have the json response as yyyy-MM-dd. I tried the @DateTimeFormat(iso = ISO.DATE) annotation and that did not help eithe…
ByteBuffer to int array (each byte)
Related to question byte array to Int Array, however I would like to convert each byte to an int, not each 4-bytes. Is there a better/cleaner way than this: Answer I’d probably prefer
Trying to get value out of a select option in the same form
I’m trying to get value out of the select option. But it doesn’t seems to be able to get since it’s on form. How do I do it ? I mean by having taking the value out of the option select. Answer 1.) You can not select all the items in a select with selected ! Without multiple=”multiple&#…
Why show java.lang.ClassCastException: android.text.SpannableString cannot be cast to java.lang.String?
When copying String from any browser page, pasteData works properly. However when copying SpannedString from a message sent item editor(field), the application crashes and shows this error message: My code: where the ClipboardManager instance defined as clipBoard, below: All I’m trying to do is use past…
jOOQ: Mocking DAO objects
jOOQ 3.5.0 I’m currently trying to write unit tests for a resource that is using jOOQs generated DAO objects. I’ve noticed one of the base classes (DAOImpl) in the DAO hierarchy has many final methods which makes it unfriendly to mock (I’m excluding byte code manipulators like Powermock as a…