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Check if class already assigned before adding
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Please re-read my question and you will notice that its not about beeing safe but about best practice
– Muleskinner
Sep 13 '11 at 14:33
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Syntax Error: Not a Chance
... taken to mean you want to enable the 'create blocks with braces' feature, and the exception tells you your chances of that ever happening are nil.
You can add that to the long list of in-jokes included in Python, just like import __hello__, import this and import antigravity. The Python developers...
Set NOW() as Default Value for datetime datatype?
I have two columns in table users namely registerDate and lastVisitDate which consist of datetime data type. I would like to do the following.
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How do I git rebase the first commit?
...ate a fresh repo, then made three commits. Now I want to rebase to go back and amend my first commit, but if I do git rebase -i HEAD~3 it complains! If I try the same with HEAD~2 then it kinda works but only lets me rearrange the last two commits.
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Register Application class in Manifest?
... from Application, add the fully qualified (namespace + class name) as the android:name parameter of the application element in your manifest.
<application
android:name="com.you.yourapp.ApplicationEx"
Or if the class' package can be described as relative to the package in the manifest ...
What are the use(s) for tags in Go?
...ues of struct fields. Basically we need to acquire the Type of our struct, and then we can query fields e.g. with Type.Field(i int) or Type.FieldByName(name string). These methods return a value of StructField which describes / represents a struct field; and StructField.Tag is a value of type Struct...
How to copy a java.util.List into another java.util.List
...y otherList from another thread, then you may want to make that otherList (and even newList) a CopyOnWriteArrayList, for instance -- or use a lock primitive, such as ReentrantReadWriteLock to serialize read/write access to whatever lists are concurrently accessed.
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Is an HTTPS query string secure?
...request is safe, as the browser will first establish the secure connection and then send the request containing the GET parameters. But GET url's will be stored in the users browser history / autocomplete, which is not a good place to store e.g. password data in. Of course this only applies if you t...
How do I increase the number of displayed lines of a Java stack trace dump?
... that was caused by this exception (the "enclosing" exception).
This shorthand can greatly reduce the length of the output in the common case where a wrapped exception is thrown from same method as the "causative exception" is caught.
In other words, the "... x more" only appears on a chained excep...
push_back vs emplace_back
I'm a bit confused regarding the difference between push_back and emplace_back .
7 Answers
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