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How do HashTables deal with collisions?
...lookups in hash tables very slow.
Option 2: If the hash table entries are all full then the hash table can increase the number of buckets that it has and then redistribute all the elements in the table. The hash function returns an integer and the hash table has to take the result of the hash funct...
How do I display the current value of an Android Preference in the Preference summary?
...ic solution, if that suits your needs.
For example, if you want to generically have all list preferences show their choice as summary, you could have this for your onSharedPreferenceChanged implementation:
public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
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Is there any git hook for pull?
...ot on there, it doesn't exist.
That said, there is a post-merge hook, and all pulls include a merge, though not all merges are pulls. It's run after merges, and can't affect the outcome. It never gets executed if there were conflicts; you'd have to pick that up with the post-commit hook if it reall...
Access Denied for User 'root'@'localhost' (using password: YES) - No Privileges?
...ost, User, Password) VALUES ('%', 'root', password('YOURPASSWORD'));
GRANT ALL ON *.* TO 'root'@'%' WITH GRANT OPTION;
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JavaScript naming conventions [closed]
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I see Crockford's guildelines mentions "Do not use _ underbar as the first or last character of a name. It is sometimes intended to indicate privacy". I personally use underbar to indicate private members. Is this bad practice? Is there an alternative?
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Rotating and spacing axis labels in ggplot2
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q + theme(axis.text.x = element_text(angle = 90, vjust = 0.5, hjust=1))
By default, the axes are aligned at the center of the text, even when rotated. When you rotate +/- 90 degrees, you usually want it to be aligned at the edge instead:
The image above is from this blog post.
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How to get current working directory in Java?
... make passing in the directory to process very easy to do, and be able to fall back on user.dir if nothing was passed in.
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How do I forward declare an inner class? [duplicate]
... one of the following
Make the class non-nested
Change your declaration order so that the nested class is fully defined first
Create a common base class that can be both used in the function and implemented by the nested class.
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Is there a Public FTP server to test upload and download? [closed]
...ws anonymous uploads would be utterly swamped with pr0n and warez in short order.
It's easy enough to set up your own FTP server for testing uploads. There's plenty of them for most any desktop OS. There's one built into IIS, for instance.
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Using Intent in an Android application to show another activity
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The issue was the OrderScreen Activity wasn't added to the AndroidManifest.xml. Once I added that as an application node, it worked properly.
<activity android:name=".OrderScreen" />
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