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Can a variable number of arguments be passed to a function?
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Calculate size of Object in Java [duplicate]
...;
public class Measurer {
public static void main(String[] args) {
Set<Integer> hashset = new HashSet<Integer>();
Random random = new Random();
int n = 10000;
for (int i = 1; i <= n; i++) {
hashset.add(random.nextInt());
}
System.out.println(ObjectGra...
How does this program work?
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That's because %d expects an int but you've provided a float.
Use %e/%f/%g to print the float.
On why 0 is printed: The floating point number is converted to double before sending to printf. The number 1234.5 in double representation in little endian is
00 00 00 00 00 4A 93...
How can I find all of the distinct file extensions in a folder hierarchy?
On a Linux machine I would like to traverse a folder hierarchy and get a list of all of the distinct file extensions within it.
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How to output only captured groups with sed?
...wing insertion of a newline in the pattern space, one suggestion is:
> set string = "This is a sample 123 text and some 987 numbers"
>
> set pattern = "[0-9][0-9]*"
> echo $string | sed "s/$pattern/\n&\n/g" | sed -n "/$pattern/p"
123
987
> set pattern = "[a-z][a-z]*"
> echo $s...
Convert absolute path into relative path given a current directory using Bash
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Minor improvement: Instead of setting source/target directly to $1 and $2, do: source=$(cd $1; pwd) target=$(cd $2; pwd). This way it handles paths with . and .. correctly.
– Joseph Garvin
Apr 4 '12 at 15:11
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What's the difference between HEAD^ and HEAD~ in Git?
When I specify an ancestor commit object in Git, I'm confused between HEAD^ and HEAD~ .
15 Answers
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Pure JavaScript Send POST Data Without a Form
...ody:
var xhr = new XMLHttpRequest();
xhr.open("POST", yourUrl, true);
xhr.setRequestHeader('Content-Type', 'application/json');
xhr.send(JSON.stringify({
value: value
}));
By the way, for get request:
var xhr = new XMLHttpRequest();
// we defined the xhr
xhr.onreadystatechange = function ()...
Linux command: How to 'find' only text files?
After a few searches from Google, what I come up with is:
16 Answers
16
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How to find if a given key exists in a C++ std::map
I'm trying to check if a given key is in a map and somewhat can't do it:
14 Answers
14...