In cases such as restoring a database dump, or otherwise wishing to push some information through a pipe from the host, you can use the -i flag as an argument to docker run or docker exec.
E.g., assuming you want to put to a containerized mariadb client a database dump that you have on the host, in...
If you want to convert the content of a part into a domain object (e.g. a User or Account or Address), then the process is very simple:
It is possible to upload multiple parts, each with a different name. For each part name, you will need one parameter annotated with @RequestPart, whose name matche...
The following code can be entered in a Tcl shell (tclsh),
or into a script file and run through a Tcl shell:
puts "Hello, world!"
It gives the string argument Hello, world! to the command puts. The puts command writes its argument to standard out (your terminal in interactive mode) an...
We can use the :: syntax to dispatch on the type of an argument.
describe(n::Integer) = "integer $n"
describe(n::AbstractFloat) = "floating point $n"
Usage:
julia> describe(10)
"integer 10"
julia> describe(1.0)
"floating point 1.0"
Unlike m...
This code compiles:
Integer arg = null;
int x = arg;
But it will crash at runtime with a java.lang.NullPointerException on the second line.
The problem is that a primitive int cannot have a null value.
This is a minimalistic example,
but in practice it often manifests in more sophisticated f...
A class, functions as a template that defines the basic characteristics of a particular object. Here's an example:
class Person(object):
"""A simple class.""" # docstring
species = "Homo Sapiens" ...
Using Code Contracts it is possible to apply a contract to an interface. This is done by declaring an abstract class that implments the interfaces. The interface should be tagged with the ContractClassAttribute and the contract definition (the abstract class) should be tagged with the ContractClas...
K&R
void* is a catch all type for pointers to object types. An example of this in use is with the malloc function, which is declared as
void* malloc(size_t);
The pointer-to-void return type means that it is possible to assign the return value from malloc to a pointer to any other type of ob...
std::ifstream f("file.txt");
if (f)
{
std::stringstream buffer;
buffer << f.rdbuf();
f.close();
// The content of "file.txt" is available in the string `buffer.str()`
}
The rdbuf() method returns a pointer to a streambuf that can be pushed into buffer...
section .data
msg db "Hello world!",10 ; 10 is the ASCII code for a new line (LF)
section .text
global _start
_start:
mov rax, 1
mov rdi, 1
mov rsi, msg
mov rdx, 13
syscall
mov rax, 60
mov rdi, 0
syscall
If you want to e...
You can update multiple columns in a table in the same statement, separating col=val pairs with commas:
UPDATE person
SET country = 'USA',
state = 'NY'
WHERE city = 'New York';
The following command imports CSV files into a MySQL table with the same columns while respecting CSV quoting and escaping rules.
load data infile '/tmp/file.csv'
into table my_table
fields terminated by ','
optionally enclosed by '"'
escaped by '"'
lines terminated by '\n'
ignore 1...
Download and install Visual Studio Community 2015
Open Visual Studio Community
Click File -> New -> Project
Click Templates -> Visual C++ -> Win32 Console Application and then name the project MyFirstProgram.
Click Ok
Click Next in the following window.
Check the Empty proj...
Be careful, this approach might be considered as a bad design for angular apps, since it requires programmers to remember both where functions are placed in the scope tree, and to be aware of scope inheritance. In many cases it would be preferred to inject a service (Angular practice - using scope ...
This function returns the floating-point remainder of the division of x/y. The returned value has the same sign as x.
#include <math.h> /* for fmod() */
#include <stdio.h> /* for printf() */
int main(void)
{
double x = 10.0;
double y = 5.1;
double modulus = fmod(x,...
A sequence is a series of elements that can be enumerated. It is an alias of System.Collections.Generic.IEnumerable and lazy. It stores a series of elements of the same type (can be any value or object, even another sequence). Functions from the Seq.module can be used to operate on it.
Here is a s...
Typically, when using UIControl or UIButton, we add a selector as a callback action for when an event occurs on a button or control, such as the user pressing the button or touching the control.
For example, we would do the following:
import UIKit
class ViewController: UIViewController {
@...
Realm currently does not support storing a list of primitives. It is on their todo list (GitHub issue #575), but for the meantime, here is a workaround.
Create a new class for your primitive type, this uses Integer, but change it for whatever you want to store.
public class RealmInteger extends Re...
Using vanilla mathematics:
var from:Point = new Point(100, 50);
var to:Point = new Point(80, 95);
var angle:Number = Math.atan2(to.y - from.y, to.x - from.x);
Using a new vector representing the difference between the first two:
var difference:Point = to.subtract(from);
var angle:Number ...
