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Java ArrayList replace at specific index
I need help with this java please. I created an ArrayList of bulbs, and I'm trying to replace a bulb at specific index with another bulb. So with the following heading, how do I proceed?
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String vs. StringBuilder
I understand the difference between String and StringBuilder ( StringBuilder being mutable) but is there a large performance difference between the two?
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How do I create a dynamic key to be added to a JavaScript object variable [duplicate]
... numeric value of the property whose name is numeric and whose value, when converted to a number, is the largest of all such properties. That sounds really weird, but it just means that given an array instance, the properties with names like "0", "5", "207", and so on, are all treated specially in t...
Get the client's IP address in socket.io
...ket.handshake.headers["x-real-port"];
Note that the header is internally converted to lower case.
If you are connecting the node server directly to the client,
var ip = socket.conn.remoteAddress;
works with socket.io version 1.4.6 for me.
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Reset auto increment counter in postgres
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Converted from comment for the sake of visitor's convenience
It's not clear from this message what the correct syntax is. It is:
ALTER SEQUENCE product_id_seq RESTART WITH 1453;
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BestPractice - Transform first character of a string into lower case
...ng without first letter. Then i will add this string to first char that is converted to lower case
– fedotoves
Aug 25 '10 at 11:34
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What is the correct way to create a single-instance WPF application?
Using C# and WPF under .NET (rather than Windows Forms or console), what is the correct way to create an application that can only be run as a single instance?
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Order a List (C#) by many fields? [duplicate]
... For example, let's suppose I have a class called X with two Attributes, A and B, and I have the following objects, in that order:
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Using braces with dynamic variable names in PHP
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Tom if you have existing array you can convert that array to object and use it like this:
$r = (object) $MyQueryResult;
echo $r->key;
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R: += (plus equals) and ++ (plus plus) equivalent from c++/c#/java, etc.?
...ement operator was introduced to make job for compiler easier, as it could convert the code to those machine language instructions directly.
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