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Difference between null and empty (“”) Java String
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"" is an actual string, albeit an empty one.
null, however, means that the String variable points to nothing.
a==b returns false because "" and null do not occupy the same space in memory--in other words, their variables don't point to the same object...
How to check if a string starts with a specified string? [duplicate]
I'm trying to check if a string starts with http . How can I do this check?
6 Answers
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Is it possible only to declare a variable without assigning any value in Python?
Is it possible to declare a variable in Python, like so?:
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Custom HTTP headers : naming conventions
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The recommendation is was to start their name with "X-". E.g. X-Forwarded-For, X-Requested-With. This is also mentioned in a.o. section 5 of RFC 2047.
Update 1: On June 2011, the first IETF draft was posted to deprecate the recommendation of using the "X-" prefix for n...
Convert Python program to C/C++ code? [closed]
is it possible to convert a Python program to C/C++?
8 Answers
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Convert form data to JavaScript object with jQuery
...dden fields which have the same name as real inputs as they will get overwritten.
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String, StringBuffer, and StringBuilder
Please tell me a real time situation to compare String , StringBuffer , and StringBuilder ?
11 Answers
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What does DIM stand for in Visual Basic and BASIC?
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Dim originally (in BASIC) stood for Dimension, as it was used to define the dimensions of an array.
(The original implementation of BASIC was Dartmouth BASIC, which descended from FORTRAN, where DIMENSION is spelled out.)
Nowadays, Dim is used to define any variable, not j...
What is the difference between YAML and JSON?
...essarily the other way around.
See the official specs, in the section entitled "YAML: Relation to JSON".
In general, there are certain things I like about YAML that are not available in JSON.
As @jdupont pointed out, YAML is visually easier to look at. In fact the YAML homepage is itself valid...
Is it possible to serialize and deserialize a class in C++?
Is it possible to serialize and deserialize a class in C++?
13 Answers
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