Tutorial by Examples: s

Firstly you need to download and install the VSCode. This VSCode latest version is available for download in its Official website . After download the VSCode you should install and open it. Introduction of Extensions in VSCode VSCode is a open editor so it provide editor for all languages but ...

VsCode is unable to create the ionic project because it is a code editor.So you can create your ionic project by CLI or cmd. create your project by below command $ ionic start appName blank Above command use to create blank template ionic application. Ionic2 provide three type of templates blank...

Some digital image processing algorithm such as edge detection, information carried by the image intensity (i.e. grayscale value) is sufficient. Using color information (R, G, B channel) may provides slightly better result, but the algorithm complexity will be increased. Thus, in this case, we need ...

The following rules define a simple strategy for creating immutable objects. Don't provide "setter" methods - methods that modify fields or objects referred to by fields. Make all fields final and private. Don't allow subclasses to override methods. The simplest way to do this is to d...

public final class Color { final private int red; final private int green; final private int blue; private void check(int red, int green, int blue) { if (red < 0 || red > 255 || green < 0 || green > 255 || blue < 0 || blue > 255) { throw ...

In this case class Point is mutable and some user can modify state of object of this class. class Point { private int x, y; public Point(int x, int y) { this.x = x; this.y = y; } public int getX() { return x; } public void setX(int ...

The advantage of immutability comes with concurrency. It is difficult to maintain correctness in mutable objects, as multiple threads could be trying to change the state of the same object, leading to some threads seeing a different state of the same object, depending on the timing of the reads and ...

require 'date' date1 = Date.parse "01/06/2016" date2 = Date.parse "05/06/2016" p "Period #{date1.strftime("%d/%m/%Y")} to #{date2.strftime("%d/%m/%Y")}" (date1..date2).each do |date| p date.strftime("%d/%m/%Y") end # "...

$ provides an easy and a concise method to concatenate multiple strings. var str1 = "text1"; var str2 = " "; var str3 = "text3"; string result2 = $"{str1}{str2}{str3}"; //"text1 text3"

Bubble sorting with rules and replacements: list = {1, 4, 2, 3, 6, 7, 8, 0, 1, 2, 5, 4} list //. {fsts___, x_, y_, lsts___} :> {fsts, y, x, lsts} /; y < x (* Out[1] := {1, 4, 2, 3, 6, 7, 8, 0, 1, 2, 5, 4} Out[1] := {0, 1, 1, 2, 2, 3, 4, 4, 5, 6, 7, 8} *)

Suppose we have this file: test>>cat file 10.Gryffindor 4.Hogwarts 2.Harry 3.Dumbledore 1.The sorting hat To sort this file numerically, use sort with -n option: test>>sort -n file This should sort the file as below: 1.The sorting hat 2.Harry 3.Dumbledore 4.Hogwa...

Suppose we have this file: test>>cat Hogwarts Harry Malfoy Rowena Helga Gryffindor Slytherin Ravenclaw Hufflepuff Hermione Goyle Lockhart Tonks Ron Snape Olivander Newt Ron Goyle Flitwick ...

Since BackAndroid is deprecated. Use BackHandler instead of BackAndroid. import { BackHandler } from 'react-native'; {...} ComponentWillMount(){ BackHandler.addEventListener('hardwareBackPress',()=>{ if (!this.onMainScreen()) { this.goBack(); return true; ...

In the following example echo on will take effect after the end of the brackets context is reached: @echo off ( echo on echo ## ) echo $$ In order to "activate" echo on in a brackets context (including FOR and IF commands) you can use FOR /f macro : @echo off setlocal ...

Anonymous functions technique uses the fact that CALL command uses internally GOTO when subroutine is called and abusing help message printing with variable double expansion: @echo off setlocal set "anonymous=/?" call :%%anonymous%% a b c 3>&1 >nul if "%0" == ...

Lets have the following file called library.cmd : @echo off echo -/-/- Batch Functions Library -/-/- :function1 echo argument1 - %1 goto :eof To execute only the :function1 without the code of the rest of the file you should put a label :function1 in the caller bat and use it lik...

import java.util.StringTokenizer; public class Simple{ public static void main(String args[]){ StringTokenizer st = new StringTokenizer("apple ball cat dog"," "); while (st.hasMoreTokens()) { System.out.println(st.nextToken()); } } ...

public static void main(String args[]) { StringTokenizer st = new StringTokenizer("apple,ball cat,dog", ","); while (st.hasMoreTokens()) { System.out.println(st.nextToken()); } } Output: apple ball cat dog

Semaphores are used to synchronize operations between two or more processes. POSIX defines two different sets of semaphore functions: 'System V IPC' — semctl(), semop(), semget(). 'POSIX Semaphores' — sem_close(), sem_destroy(), sem_getvalue(), sem_init(), sem_open(), sem_post(), sem_try...

Parent element html <child-component [isSelected]="inputPropValue"></child-component> Parent element ts export class AppComponent { inputPropValue: true } Child component ts: export class ChildComponent { @Input() inputPropValue = false; } Child compone...