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Map.clear() vs new Map : Which one will be better? [duplicate]
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Complicated question. Let's see what happens.
You instantiate a new instance, which is backed with new array. So, garbage collector should clear all the key and values from the previous map, and clear the reference to itself. So O(n) algorithm is executed anyway...
Why is a round-trip conversion via a string not safe for a double?
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void DoubleToNumber(double value, int precision, NUMBER* number)
{
WRAPPER_CONTRACT
_ASSERTE(number != NULL);
number->precision = precision;
if (((FPDOUBLE*)&value)->exp == 0x7FF) {
number->scale = (((FPDOUBLE*)&value)->mantLo || ((FPDOUBLE*)&value)...
When to use an assertion and when to use an exception
...e an exception to check for a condition in my code, I wonder when it is an appropriate time to use an assertion?
11 Answers...
Java NIO FileChannel versus FileOutputstream performance / usefulness
...is buffer size is ripe for tuning. I've settled on 4KB for one part of my application, 256KB for another. I suspect your code is suffering with such a large buffer. Run some benchmarks with buffers of 1KB, 2KB, 4KB, 8KB, 16KB, 32KB and 64KB to prove it to yourself.
Don't perform java benchmarks ...
How are ssl certificates verified?
... @voipp: Great question! Historically there have been a few approaches, such as "send an email from webmaster@<domain-being-verified> or "Place this file on your domain to prove you own it." However, there have indeed been problems with people getting CAs to issue certificates ...
Anything wrong with NOT signing a .NET assembly?
... more point to note is if you want to share this assembly across different application then signing is a must (i.e. GAC).
– rajesh pillai
Sep 1 '09 at 18:16
add a comment
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How to copy a row and insert in same table with a autoincrement field in MySQL?
...ple of the stored procedure that I wrote to accomplish this task for a Web App that I am developing:
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON
-- Create Temporary Table
SELECT * INTO #tempTable FROM <YourTable> WHERE Id =...
Which Architecture patterns are used on Android? [closed]
...be the main entry point. Which is a bit debatable if this is the case when applying it to Android development, since the activity is the natural entry point of most applications.
Because of this, I personally find that the model–view–presenter pattern is a perfect fit for Android development. S...
How do I auto-reload a Chrome extension I'm developing?
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when you call chrome.runtime.reload(), what actually happens? do multiple pages/tabs refresh?
– Alexander Mills
Jan 1 '18 at 23:22
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How to insert a line break in a SQL Server VARCHAR/NVARCHAR string
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@Nima: Some applications will use one or the other or both to show a new line, however many applications you may output this text to will require both do appear in succession to signify a new line. I find it safe to use both. You can l...