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What is a postback?
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When does it happen?
A postback originates from the client browser. Usually one of the controls on the page will be manipulated by the user (a button clicked or dropdown changed, etc), and this control will initiate a postback. The state of this control, plus all other controls on the page,(know...
Can an int be null in Java?
... @BrianAgnew Let me rectify what I said here, I was plain wrong, I basically didn't realize that int i = (Integer)null; will throw NPE at run-time while unboxing it.
– sactiw
Jan 23 '16 at 12:22
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How to take backup of a single table in a MySQL database?
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SQL usually compresses well--you can pipe the command above through gzip and the resulting file will be much smaller: mysqldump db_name table_name | gzip > table_name.sql.gz to restore: gunzip < table_name.sql.gz | mysql -u...
With Spring can I make an optional path variable?
...ve optional path variables, but you can have two controller methods which call the same service code:
@RequestMapping(value = "/json/{type}", method = RequestMethod.GET)
public @ResponseBody TestBean typedTestBean(
HttpServletRequest req,
@PathVariable String type,
@RequestP...
How to get record created today by rails activerecord?
How should I write the conditional statement for when I want to get all the records which were created today?
10 Answers
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Check if passed argument is file or directory in Bash
I'm trying to write an extremely simple script in Ubuntu which would allow me to pass it either a filename or a directory, and be able to do something specific when it's a file, and something else when it's a directory. The problem I'm having is when the directory name, or probably files too, has s...
LINUX: Link all files from one to another directory [closed]
I want to link ( ln -s ) all files that are in /mnt/usr/lib/ into /usr/lib/
4 Answers
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What do the icons in Eclipse mean?
...good for SO to have the answer for future reference; I wondered about them all the time when I was new to Eclipse (this was before I discovered SO).
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How to use IntelliJ IDEA to find all unused code?
When I am in a .java file the unused code is usually grayed out or has a green underline saying this code will probably (probably because of some weird JNI/Reflection corner cases) be unused. But I have this project with thousands of Java files and I want to find ALL INSTANCES of such probable-unuse...
“Has invalid child element” warnings in Microsoft.Common.Targets while building
...k it to get more info, the Microsoft.Common.Targets pops up and then I get all on the warnings.
1 Answer
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