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Easiest way to convert a List to a Set in Java
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Set<Foo> foo = new HashSet<Foo>(myList);
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List of Timezone ID's for use with FindTimeZoneById() in C#?
...dard Time
SA Western Standard Time
Pacific SA Standard Time
Newfoundland Standard Time
E. South America Standard Time
Argentina Standard Time
SA Eastern Standard Time
Greenland Standard Time
Montevideo Standard Time
UTC-02
Mid-Atlantic Standard Time
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iOS (iPhone, iPad, iPodTouch) view real-time console log terminal
...9 and much easier to use.
This is a open-source program that displays the iDevice's system log in Terminal (in a manner similar to tail -F). No jailbreak is required, and the output is fully grep'able so you can filter to see output from your program only. What's particularly good about this solut...
Base64 Java encode and decode a string [duplicate]
...e64.encodeBase64(str.getBytes());
System.out.println("encoded value is " + new String(bytesEncoded));
// Decode data on other side, by processing encoded data
byte[] valueDecoded = Base64.decodeBase64(bytesEncoded);
System.out.println("Decoded value is " + new String(valueDecoded));
Hope this ans...
Rename a dictionary key
...there a way to rename a dictionary key, without reassigning its value to a new name and removing the old name key; and without iterating through dict key/value?
In case of OrderedDict, do the same, while keeping that key's position.
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Reverse a string in Java
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You can use this:
new StringBuilder(hi).reverse().toString()
Or, for versions earlier than JDK 1.5, use java.util.StringBuffer instead of StringBuilder — they have the same API. Thanks commentators for pointing out that StringBuilder is pr...
List of lists changes reflected across sublists unexpectedly
...1, 1], [42, 1, 1, 1]]
To fix it, you need to make sure that you create a new list at each position. One way to do it is
[[1]*4 for _ in range(3)]
which will reevaluate [1]*4 each time instead of evaluating it once and making 3 references to 1 list.
You might wonder why * can't make independe...
What is the difference between save and insert in Mongo DB?
...sert : false : Nothing happens when no such document exist
upsert : true : New doc gets created with contents equal to query params and update params
save : Doesn't allow any query-params. if _id exists and there is a matching doc with the same _id, it replaces it. When no _id specified/no matching...
How to change value of object which is inside an array using JavaScript or jQuery?
... }
}
and use it like
var projects = [ ... ];
changeDesc ( 'jquery-ui', 'new description' );
UPDATE:
To get it faster:
var projects = {
jqueryUi : {
value: 'lol1',
desc: 'lol2'
}
};
projects.jqueryUi.desc = 'new string';
(In according to Frédéric's comment you shouldn...
Do I need to close() both FileReader and BufferedReader?
...ed out, you only need to close the outer wrapper.
BufferedReader reader = new BufferedReader(new FileReader(fileName));
There is a very slim chance that this could leak a file handle if the BufferedReader constructor threw an exception (e.g. OutOfMemoryError). If your app is in this state, how ca...