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Using SSH keys inside docker container
I have an app that executes various fun stuff with Git (like running git clone & git push) and I'm trying to docker-ize it.
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What's the difference between ConcurrentHashMap and Collections.synchronizedMap(Map)?
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123
Please also note that the ConcurrentHashMap does not allow null keys or values. So they are NOT equal alternatives of a synchronized map.
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Is it ok to use dashes in Python files when trying to import them?
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123
One other thing to note in your code is that import is not a function. So import(python-code)...
Xcode 6 - How to pick signing certificate/provisioning profile for Ad-Hoc distribution?
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AlexHsiehAlexHsieh
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Object-orientation in C
...truct derived *)base_ptr; // downcast
To get polymorphism (i.e. virtual functions), you use function pointers, and optionally function pointer tables, also known as virtual tables or vtables:
struct base;
struct base_vtable
{
void (*dance)(struct base *);
void (*jump)(struct base *, int ...
Remove rows with all or some NAs (missing values) in data.frame
...mptions --------------------
fakeData <- function(m, n, p){
set.seed(123)
m <- matrix(runif(m*n), nrow=m, ncol=n)
m[m<p] <- NA
return(m)
}
df <- cbind( data.frame(id = paste0('ID',seq(row_size)),
stringsAsFactors = FALSE),
data.frame(fak...
HTTP status code for update and delete?
...atus code is the request sent by the client is valid (DELETE mySite/entity/123) and the entity to delete does not exist.
– Martin
Dec 30 '11 at 21:27
69
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How do I print a double value without scientific notation using Java?
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123
You could use printf() with %f:
double dexp = 12345678;
System.out.printf("dexp: %f\n", dexp)...
Guid.NewGuid() vs. new Guid()
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I'll add this for fun. For a 1% chance of collision, you'd need to generate about 2,600,000,000,000,000,000 GUIDs
– Clinton Ward
Aug 13 '12 at 16:20
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HTTP 404 Page Not Found in Web Api hosted in IIS 7.5
...is solved it for me to. On Windows 7, Visual Studio 2015 Ent, new MVC 5 website, changed from IIS Express to full IIS.
– Geoff Gunter
Sep 14 '16 at 20:50
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