Consider the following Java classes:
class Foo {
private Bar bar;
public void foo() {
bar.baz();
}
}
As can be seen, the class Foo needs to call the method baz on an instance of another class Bar for its method foo to work successfully. Bar is said to be a dependency for Foo sin...
The same examples as shown above with XML configuration can be re-written with Java configuration as follows.
Constructor injection
@Configuration
class AppConfig {
@Bean
public Bar bar() { return new Bar(); }
@Bean
public Foo foo() { return new Foo(bar()); }
}
Property in...
Dependencies can be autowired when using the component scan feature of the Spring framework. For autowiring to work, the following XML configuration must be made:
<context:annotation-config/>
<context:component-scan base-package="[base package]"/>
where, base-package is th...
Constructor injection through Java configuration can also utilize autowiring, such as:
@Configuration
class AppConfig {
@Bean
public Bar bar() { return new Bar(); }
@Bean
public Foo foo(Bar bar) { return new Foo(bar); }
}
Go through the steps:
Add 'NSAppleMusicUsageDescription' to your Info.plist for the privacy authority.
Make sure your music is available in your iPhone. It will not work in the simulator.
iOS 10.0.1
import UIKit
import AVFoundation
import MediaPlayer
class ViewController: UIViewControll...
Processing provides method rect() to draw a rectangle. This code draws a white 50 X 50 rectangle on black background.
void setup() {
size(500, 500);
background(0);
fill(255);
noStroke();
}
void draw() {
rect(225, 225, 50, 50);
}
The signature of method rect() is thi...
Processing provides method ellipse in order to draw ellipse. This code draws a white circle which has radius of 25 pixels.
void setup() {
size(500, 500);
background(0);
fill(255);
noStroke();
}
void draw() {
ellipse(225, 225, 50, 50);
}
The signature of method ellip...
You may want to read a DataFrame from a CSV (Comma separated values) file or maybe even from a TSV or WSV (tabs and whitespace separated files). If your file has the right extension, you can use the readtable function to read in the dataframe:
readtable("dataset.CSV")
But what if your ...
For Navigate to any url :
driver.navigate().to("http://www.example.com");
For move backwards :
driver.navigate().back();
For move forwards :
driver.navigate().forward();
For refresh the page :
driver.navigate().refresh();
a = [1, 2, 3, 4, 5]
# steps through the list backwards (step=-1)
b = a[::-1]
# built-in list method to reverse 'a'
a.reverse()
if a = b:
print(True)
print(b)
# Output:
# True
# [5, 4, 3, 2, 1]
def shift_list(array, s):
"""Shifts the elements of a list to the left or right.
Args:
array - the list to shift
s - the amount to shift the list ('+': right-shift, '-': left-shift)
Returns:
shifted_array - the shifted list
"&quo...
Typically, packages consist of one or more modules. As packages grow, it may be useful to organize the main module of the package into smaller modules. A common idiom is to define those modules as submodules of the main module:
module RootModule
module SubModule1
...
end
module SubModul...
There are many reasons a write operation may fail. A frequent one is because your security rules reject the operation, for example because you're not authenticated (by default a database can only be accessed by an authenticated user).
You can see these security rule violations in the console output...
[Service]
# empty exec prevents error "docker.service has more than one ExecStart= setting, which is only allowed for Type=oneshot services. Refusing."
ExecStart=
ExecStart=/usr/bin/dockerd -H fd:// --log-driver=syslog
This enables syslog logging for the docker daemon. The file sho...
The navigation pane located at the left hand side of the admin panel is how you navigate to and access different administration functionalities in the OpenCart back end.
Pane expander
Current account name and role
Dashboard
Catalog
Categories
Products
Recurring Profiles
Filters
Attrib...
DECLARE @ID AS INT;
SET @ID = (SELECT MIN(ID) from TABLE);
WHILE @ID IS NOT NULL
BEGIN
PRINT @ID;
SET @ID = (SELECT MIN(ID) FROM TABLE WHERE ID > @ID);
END
Aggregation is used to perform complex data search operations in the mongo query which can't be done in normal "find" query.
Create some dummy data:
db.employees.insert({"name":"Adma","dept":"Admin","languages":["german","f...
When defining a new trait it is possible to enforce that types wishing to implement this trait verify a number of constraints or bounds.
Taking an example from the standard library, the DerefMut trait requires that a type first implement its sibling Deref trait:
pub trait DerefMut: Deref {
fn...
