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Getting the IP address of the current machine using Java
... new DatagramSocket()){
socket.connect(InetAddress.getByName("8.8.8.8"), 10002);
ip = socket.getLocalAddress().getHostAddress();
}
This way works well when there are multiple network interfaces. It always returns the preferred outbound IP. The destination 8.8.8.8 is not needed to be reachable....
omp parallel vs. omp parallel for
...lloc(...); // this data is thread private
#pragma omp for
for(1...100) // first parallelized cycle
{
}
#pragma omp single
{} // make some single thread processing
#pragma omp for // second parallelized cycle
for(1...100)
{
}
#pragma omp single
{}...
How does Hadoop process records split across block boundaries?
...o discard the first line or not.
So basically if you have 2 lines of each 100Mb in the same file, and to simplify let's say the split size is 64Mb. Then when the input splits are calculated, we will have the following scenario:
Split 1 containing the path and the hosts to this block. Initialized ...
How did I get a value larger than 8 bits in size from an 8-bit integer?
...
+100
This is a compiler bug.
Although getting impossible results for undefined behaviour is a valid consequence, there is actually no un...
How to return a result from a VBA function
...nt and your goal is to return an array then something like ReDim test(1 to 100) will trigger an error. Also, even though it is possible to treat basic type like Integers like that it is considered somewhat unidiomatic. It makes the code harder to read. VBA programmers scan for lines which assign to ...
How would Git handle a SHA-1 collision on a blob?
...estamp)
For #5 and #9, you will typically get an error like this:
fatal: 1000000000000000000000000000000000000000 is not a valid 'tree' object
when running "git commit"
If someone tries to clone your corrupt repository, they will typically see something like:
git clone (one repo with collided ...
Converting between strings and ArrayBuffers
...4,114,97,121,32,99,111,110,118,101,114,116,
101,100,32,116,111,32,97,32,115,116,114,105,110,103]);
console.log(enc.decode(arr));
The MDN StringView library
An alternative to these is to use the StringView library (licensed as lgpl-3.0) which goal is:
to cre...
Javascript calculate the day of the year (1 - 366)
... new Date(now.getFullYear(), 0, 0);
var diff = now - start;
var oneDay = 1000 * 60 * 60 * 24;
var day = Math.floor(diff / oneDay);
console.log('Day of year: ' + day);
Edit: The code above will fail when now is a date in between march 26th and October 29th andnow's time is before 1AM (eg 0...
Why should Java ThreadLocal variables be static
...;Integer> integerList = new ArrayList<>();
//creates a List of 100 integers
for (int i = 0; i < 100; i++) {
integerList.add(i);
}
//parallel stream to test concurrent thread execution
integerList.parallelStream().forEach(intValue -> {
//All concurrent thread will...
How do I write a custom init for a UIView subclass in Swift?
...= s
self.i = i
super.init(frame: CGRect(x: 0, y: 0, width: 100, height: 100))
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
}
}
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