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How to change the ROOT application?

...tdown your Tomcat from the its bin directory (sh shutdown.sh). Then delete all the content of your Tomcat webapps folder (rm -fr *). Then rename your WAR file to ROOT.war, and finally start your Tomcat from the bin directory (sh startup.sh). Leave your war file in $CATALINA_BASE/webapps under its or...
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What's the difference between ConcurrentHashMap and Collections.synchronizedMap(Map)?

... For your needs, use ConcurrentHashMap. It allows concurrent modification of the Map from several threads without the need to block them. Collections.synchronizedMap(map) creates a blocking Map which will degrade performance, albeit ensure consistency (if used properl...
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Are typedef and #define the same in c?

...ine fail in casec of function pointer as argument? – Allahjane Dec 31 '16 at 23:02 3 @Allahjane: ...
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Git ignore file for Xcode projects

...on Apple mailing lists. Apple continues to add undocumented files, potentially corrupting our live projects. This IMHO is unacceptable, and I've now started logging bugs against it each time they do so. I know they don't care, but maybe it'll shame one of them into treating developers more fairly. ...
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Is there a working C++ refactoring tool? [closed]

... Unfortunately, Refactor for C++ doesn't work well (if at all) with large codebases. – Daniel Rose May 4 '11 at 9:46 1 ...
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Xcode 6 Storyboard the wrong size?

...you to get used to size classes as they are the future, and you will eventually jump in anyway at some point." You probably haven't added the layout constraints. Select your label, tap the layout constraints button on the bottom: On that menu add width and height (it should NOT be the same as...
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How to undo “git commit --amend” done instead of “git commit”

I accidentally amended my previous commit. The commit should have been separate to keep history of the changes I made to a particular file. ...
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Ignore fields from Java object dynamically while sending as JSON from Spring MVC

... Can I do it dynamically? Not in POJO? Can I do it in my Controller class? – iCode Apr 16 '14 at 6:36 ...
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Android - Activity vs FragmentActivity? [duplicate]

... ianhanniballake is right. You can get all the functionality of Activity from FragmentActivity. In fact, FragmentActivity has more functionality. Using FragmentActivity you can easily build tab and swap format. For each tab you can use...
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What are the differences between the different saving methods in Hibernate?

...g of the methods. Mainly these are based on the API though as I don't use all of these in practice. saveOrUpdate Calls either save or update depending on some checks. E.g. if no identifier exists, save is called. Otherwise update is called. save Persists an entity. Will assign an identifier if...