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Get generic type of class at runtime
...the actual type parameters used when an INSTANCE is instantiated. In other words, it CAN tell that in class A implements Comparable<String>, the actual type parameter is String, but it CANNOT tell that in Set<String> a = new TreeSet<String>(), the actual type parameter is String. I...
In C#, what happens when you call an extension method on a null object?
...but the same is true for nonvirtual calls on instance methods. I think the word “virtual” here is misplaced.
– Konrad Rudolph
May 11 '09 at 9:11
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Design Pattern for Undo Engine
...lementary commands (aside from the management of the clipboard). In other words, the undo operation for a cut is paste and the undo operation for a paste is cut. This applies to much simpler operations as typing and deleting text.
The key here is that you can use your undo/redo system as the prim...
Java Immutable Collections
...ot change in the number and composition of objects that it holds. In other words, the collection's list of references will not change. That does not mean that the internals of the object being referenced cannot change.
share...
PersistentObjectException: detached entity passed to persist thrown by JPA and Hibernate
...annotations from the member properties to the corresponding getters. A big word of caution is not to mix "Field" and "Property" access types within the entity class otherwise the behavior is undefined by the JSR-317 specifications.
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How to amend older Git commit? [duplicate]
...mend" commit comes below the one you want to amend. Then replace the first word on the line with the "amend" commit with s which will combine (s quash) it with the commit before. Save and exit your editor and follow the instructions.
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How can I use 'Not Like' operator in MongoDB
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You can do with regex which does not contain a word. Also, you can use $options => i for case of insensitive search.
Doesn't Contain string
db.collection.find({name:{'$regex' : '^((?!string).)*$', '$options' : 'i'}})
Exact case insensitive string
db.collection.fin...
Can you use reflection to find the name of the currently executing method?
...od is now another method (i.e., one or more higher up the stack). In other words, the method disappeared. Even if you mark your method with NoInlining, there's still a chance it gets tail-call optimized, in which case it's gone too. It will work, however, while in debug build.
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Split long commands in multiple lines through Windows batch file
... isn't true. You can split the line anywhere, including in the middle of a word, like co^␍py ^␍file1 ^␍file2. I suggest you delete your comment to avoid confusion, especially as this questyion is such a popular one
– Borodin
Aug 7 '15 at 21:49
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Extract first item of each sublist
...is nice and complete for what it sounds like the OP wants, but I think the word append in the question is causing confusion. It sounds like s/he simply wants the list comprehension portion of your solution.
– beroe
Jul 31 '14 at 6:21
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