Tutorial by Examples: ga

Create a simple servlet: package web.example; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse...

Player player; //The player you want to award your achievement with Achievement achievement; //The achievement you want to award your player player.awardAchievement(achievement); //Awarding the achievement Checking if player has achievement: Player player; Achievement achievement...

The module "struct" provides facility to pack python objects as contiguous chunk of bytes or dissemble a chunk of bytes to python structures. The pack function takes a format string and one or more arguments, and returns a binary string. This looks very much like you are formatting a stri...

Player playerToHide; Player playerToNotSee; playerToNotSee.hide(playerToHide); //playerToHide will no longer be seen by playerToNotSee. If player is already hidden, nothing happens

Player toUnhide; Player toSeeAgain toSeeAgain.show(toUnhide); //Player toSeeAgain will now see Player toUnhide again. If player is already visible, nothing happens.

a@coolbox:~/workspace$ express --ejs my-app a@coolbox:~/workspace$ cd my-app a@coolbox:~/workspace/my-app$ npm install a@coolbox:~/workspace/my-app$ npm start

Sometimes you want to keep the switched-out components in memory, to make that happen, you should use <keep-alive> element: Javascript: new Vue({ el: '#app', data: { currentPage: 'home', }, methods: { switchTo: function(page) { this.currentPage = page; ...

To add a resource to the cache you must provide a key and the resource. First make sure that the value is not in the cache already public void addResourceToMemoryCache(String key, Bitmap resource) { if (memoryCache.get(key) == null) memoryCache.put(key, resource); }

To get a resource from the cache simply pass the key of your resource (String in this example) public Bitmap getResourceFromMemoryCache(String key) { memoryCache.get(key); }

Some WMI Classes expose Methods that allow you to do something with that object. For example, the Win32_Printer class has 11 methods for interacting with a printer, one of which is the PrintTestPage method. The following code demonstrates how to select a specific printer and print a test page. 'Spe...

If you don't want to extend Application and keep your toast messages thread safe, make sure you show them in the post execute section of your AsyncTasks. public class MyAsyncTask extends AsyncTask <Void, Void, Void> { @Override protected Void doInBackground(Void... params) { ...

Layout XML <?xml version="1.0" encoding="utf-8"?> <layout xmlns:android="http://schemas.android.com/apk/res/android"> <data> </data> <LinearLayout android:orientation="vertical" android:layout_wid...

let map f list = let rec loop acc = function | [] -> List.rev acc | head :: tail -> loop (f head :: acc) tail loop [] list The signature of this function is ('a -> 'b) -> 'a list -> 'b list, which is the most generic it can be. This does not p...

For anything below 1.9 SpawnEgg egg = new SpawnEgg(EntityType.CREEPER); ItemStack creeperEgg = egg.toItemStack(5); For 1.9 and above In versions 1.9 and higher, Spigot does not have an implementation for creating spawn eggs without using NMS. To accomplish this, you can use a small custom cl...

The Data.Functor module contains two combinators, <$ and $>, which ignore all of the values contained in a functor, replacing them all with a single constant value. infixl 4 <$, $> <$ :: Functor f => a -> f b -> f a (<$) = fmap . const $> :: Functor f => f a ...

You browse the Records Browser first by Record Type, i.e. "Sales Order", "Invoice", "Employee". There is no searching capability within the Records Browser, so all navigation is done manually. Record Types are organized alphabetically, so you first click on the first le...

As stated previously, there is no searching capability built in to the Records Browser. Once you've navigated to the appropriate Record Type, if you don't already know a particular field's Internal ID, the easiest way to find it is to use your browser's Find function (usually CTRL+F) to locate the f...

import React, { Component } from 'react'; import { View, Text, StyleSheet } from 'react-native'; const styles = StyleSheet.create({ red: { color: 'red' }, big: { fontSize: 30 } }); class Example extends Component { render() { return ( ...

To add a background-image rule via the CSSOM, first get a reference to the rules of the first stylesheet: var stylesheet = document.styleSheets[0].cssRules; Then, get a reference to the end of the stylesheet: var end = stylesheet.length - 1; Finally, insert a background-image rule for the bo...

Suppose you have two views ViewA and ViewB Instance of ViewB is created inside ViewA, so ViewA can send message to ViewB's instance, but for the reverse to happen we need to implement delegation (so that using delegate ViewB's instance could send message to ViewA) Follow these steps to implement t...