The return method only returns from the lambda, not the outer method.
Beware that this is different from Scala and Kotlin!
void threeTimes(IntConsumer r) {
for (int i = 0; i < 3; i++) {
r.accept(i);
}
}
void demo() {
threeTimes(i -> {
System.out.println(i);
return...
If we consider a heterogenous list, wherein the elements of the list have varied but known types, it might be desirable to be able to perform operations on the elements of the list collectively without discarding the elements' type information. The following example implements a mapping operation ov...
This example shows how a label's width can automatically resize when the text content changes.
Pin the left and top edges
Just use auto layout to add constraints to pin the left and top sides of the label.
After that it will automatically resize.
Notes
This example comes from this Stack...
We can use Channel to copy file content faster. To do so, we can use transferTo() method of FileChannel .
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.channels.FileChannel;
public class FileCopier {
...
To write data to a file using Channel we need to have the following steps:
First, we need to get an object of FileOutputStream
Acquire FileChannel calling the getChannel() method from the FileOutputStream
Create a ByteBuffer and then fill it with data
Then we have to call the flip() method of ...
Consider the following three equations:
x0 + 2 * x1 + x2 = 4
x1 + x2 = 3
x0 + x2 = 5
We can express this system as a matrix equation A * x = b with:
A = np.array([[1, 2, 1],
[0, 1, 1],
[1, 0, 1]])
b = np.array([4, 3, 5])
Then, use np.linalg....
Create a select list that can be used to choose a single or multiple items from a list of values.
library(shiny)
ui <- fluidPage(
selectInput("id_selectInput",
label = HTML('<B><FONT size="3">What is your favorite color ?</FONT></B&g...
Consider following html code
<ul>
<li id=“one” class=“main”>Item 1</li>
<li id=“two” class=“main”>Item 2</li>
<li id=“three” class=“main”>Item 3</li>
<li id=“four”>Item 4</li>
</ul>
Following dom tree will be constructed ba...
The following functions allow you to build SQL SELECT statements.
$this->db->get()
This runs the selection query and returns the result. Can be used by itself to retrieve all records from a table:
$query = $this->db->get('tablename'); // Produces: SELECT * FROM tablename
The sec...
The package's official wiki has some essential materials:
As a new user, you will want to check out the vignettes, FAQ and cheat sheet.
Before asking a question -- here on StackOverflow or anywhere else -- please read the support page.
For help on individual functions, the syntax is h...
Go to application/model
File name - Home_model.php
Inside the file
class Home_model extends CI_Model {
public $variable;
public function __construct()
{
parent::__construct();
}
public function get_data()
{
$query = $this->db->get('tabl...
Syntax - $this->load->model('model_name');
Practice - $this->load->model('home_model');
If you would like your model assigned to a different object name you can specify it via the second parameter of the loading method:
Syntax -
$this->load->model('model_name', 'foobar');
...
# example data
DT <- data.table(Titanic)
Suppose that, for each sex, we want the rows with the highest survival numbers:
DT[Survived == "Yes", .SD[ N == max(N) ], by=Sex]
# Class Sex Age Survived N
# 1: Crew Male Adult Yes 192
# 2: 1st Female Adult Yes...
xml_import_example.info.yml
type: module
name: XML import example
package: Examples
description: "This module helps understanding the Batch API and Queue API with an XML import example"
core: 8.x
xml_import_example.permissions.yml
import content from xml:
title: 'Import content...
survival is the most commonly used package for survival analysis in R. Using the built-in lung dataset we can get started with Survival Analysis by fitting a regression model with the survreg() function, creating a curve with survfit(), and plotting predicted survival curves by calling the predict m...
library(RODBC)
con <- odbcDriverConnect("driver={Sql Server};server=servername;trusted connection=true")
dat <- sqlQuery(con, "select * from table");
close(con)
This will connect to a SQL Server instance. For more information on what your connection string should loo...
