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How to represent empty char in Java Character class
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As Character is a class deriving from Object, you can assign null as "instance":
Character myChar = null;
Problem solved ;)
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Structure padding and packing
... struct in an array */
} x;
Packing, on the other hand prevents compiler from doing padding - this has to be explicitly requested - under GCC it's __attribute__((__packed__)), so the following:
struct __attribute__((__packed__)) mystruct_A {
char a;
int b;
char c;
};
would produce s...
How to log something in Rails in an independent log file?
... the standard development.log or production.log. I want to do this logging from a model class.
9 Answers
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How to print time in format: 2009‐08‐10 18:17:54.811
... time. I assume you mean the localtime call - it just reformats the output from gettimeofday.
– Chris
Nov 25 '19 at 21:49
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How to send HTTP request in java? [duplicate]
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You can use java.net.HttpUrlConnection.
Example (from here), with improvements. Included in case of link rot:
public static String executePost(String targetURL, String urlParameters) {
HttpURLConnection connection = null;
try {
//Create connection
URL url = ne...
How to remove line breaks from a file in Java?
How can I replace all line breaks from a string in Java in such a way that will work on Windows and Linux (ie no OS specific problems of carriage return/line feed/new line etc.)?
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Batch: Remove file extension
I have the following batch script from Wikipedia:
7 Answers
7
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kernel stack and user space stack
...rence between kernel stack and user stack ?
In short, nothing - apart from using a different location in memory (and hence a different value for the stackpointer register), and usually different memory access protections. I.e. when executing in user mode, kernel memory (part of which is the ker...
How to calculate date difference in JavaScript?
... to get the difference in milliseconds:
var difference = date2 - date1;
From there, you can use simple arithmetic to derive the other values.
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Are HTTPS URLs encrypted?
... are 3 of them - not versions, fields that each contain a version number!)
From https://www.ietf.org/rfc/rfc3546.txt:
3.1. Server Name Indication
[TLS] does not provide a mechanism for a client to tell a server
the name of the server it is contacting. It may be desirable for
clients to provi...