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When do you need to explicitly call a superclass constructor?
So say I have a subclass that extends a superclass. In what scenarios do I need to explicitly type super() to get the superclass constructor to run?
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JsonMappingException: out of START_ARRAY token
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How do I pass multiple parameters in Objective-C?
I have read several of the post about Objective-C method syntax but I guess I don't understand multiple names for a method.
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Non-type template parameters
I understand that the non-type template parameter should be a constant integral expression. Can someone shed light why is it so ?
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Contributing to project on github, how to “rebase my pull request on top of master”
Ok so I an contributing to a project on github. The project on github is upstream , my forked repo on github is origin , and my local repo on my computer.
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What does java:comp/env/ do?
I just spent too much time of my day trying to figure out some errors when hooking up some JNDI factory bean. The problem turned out to be that instead of this...
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How can Bash execute a command in a different directory context?
I have a common command that gets called from within very specific directories. There is only one executable sitting in /bin for this program, and the current working directory is very important for running it correctly. The script affects the files that live inside the directory it is run within.
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How to map calculated properties with JPA and Hibernate
My Java bean has a childCount property. This property is not mapped to a database column . Instead, it should be calculated by the database with a COUNT() function operating on the join of my Java bean and its children. It would be even better if this property could be calculated on demand / "laz...
Base64: What is the worst possible increase in space usage?
If a server received a base64 string and wanted to check it's length before converting,, say it wanted to always permit the final byte array to be 16KB. How big could a 16KB byte array possibly become when converted to a Base64 string (assuming one byte per character)?
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Disabling Chrome cache for website development
...is only active while the devtools are open.
Note that this will result in all resources being reloaded. Should you desire to disable the cache only for some resources, you can modify the HTTP header that your server sends alongside your files.
If you do not want to use the Disable cache checkbox, ...