class

CMAccelerometerData class Vs. deprecated UIAccelerometer class

由 与世无争的帅哥 提交于 2020-01-05 05:28:08
问题 Based on this documentation, the CMAccelerometerData class (found in the Core Motion framework) has a property of type CMAcceleration called acceleration that is a typedef of a struct containing 3 values (double x, double y, double z) I'm rather new to Objective-C (I only know C++..) so my question is this : How do I access, let's say the double y value kept in that property, at some point during my code? Do I first create an instance of the CMAccelerometerData class like this :

Changing an attribute in an object that belongs to RDD

由 醉酒当歌 提交于 2020-01-05 04:42:21
问题 I have the following code : def generateStoriesnew(outputPath: String, groupedRDD:RDD[(String,Iterable[String])], isInChurnMode: Boolean, isInChurnPeriod: Boolean) { val windowedRDD = groupedRDD.map(SOME CODE) var windowedRDD2 = windowedRDD.filter(r => r != null).map(a=>a.churnPeriod(isInChurnPeriod,isInChurnMode)) val prettyStringRDD = windowedRDD2.map(r => { r.toString }) prettyStringRDD.saveAsTextFile(outputPath) } and here is the code for ChurnPriod function: def churnPeriod( churnPeriod

jQuery tmpl plugin - problems with template results from dynamic content (bug?)

由 自作多情 提交于 2020-01-05 04:38:12
问题 I've use jQuery templates (http://api.jquery.com/jquery.tmpl/) to render lists on pages based on remote content, this is all working well, however when I apply a class to the content and have a click event for the class dynamic template content doesn't respect the action where as hard coded content works fine. I've slightly edited the basic demo which ships with the tmpl plugin to add a static list as a proof of concept: http://jsfiddle.net/3eVrR/2/ Clicking the static 'bar' link generates an

C# class to check if files exists in folder

由 帅比萌擦擦* 提交于 2020-01-05 04:35:11
问题 I am very new to C# and i have written the following class: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.IO; namespace PrinterManager { class CheckFilesExist { public class CheckFilesExist { public static bool check(bool isThere) { DirectoryInfo di = new DirectoryInfo("c:\temp"); FileInfo[] TXTFiles = di.GetFiles("*.xml"); if (TXTFiles.Length == 0) { return isThere; } foreach (var fi in TXTFiles) //return (fi.Exists); return (fi.Exists);

Method called by parent constructor behaves as child method

由 对着背影说爱祢 提交于 2020-01-05 04:12:06
问题 I am testing some polymorphism in java and my code looks like the following: class Base { int value = 0; public Base(){ System.out.println("Came Here And Value is: " + value); addValue(); } String addValue(){ System.out.println("Calling Bases' addValue and value is currently: " + value); value += 10; return ""; } int getValue(){ return value; } } class Derived extends Base{ public Derived(){ System.out.println("Calling Derived constructor and value currently is: " + value); addValue(); }

Can I use .getClass() == .class or .getClass() == .class.getClass()?

由 喜欢而已 提交于 2020-01-05 04:10:50
问题 I'm testing if an Object is equals than a specific class type. For example: @Override public void itemStateChanged(ItemEvent e) { if (e.getStateChange() == ItemEvent.SELECTED) { Object sourceObject = e.getSource(); if (sourceObject.getClass() == JComboBox.class.getClass()) { @SuppressWarnings("unchecked") JComboBox<String> jComboBox = (JComboBox<String>) sourceObject; So, what comparison method should I use? sourceObject.getClass() == JComboBox.class.getClass() or sourceObject.getClass() ==

Correct implementation of a S3-method: When should I use ellipsis?

由 回眸只為那壹抹淺笑 提交于 2020-01-05 03:55:12
问题 I realized the benefit of using S3 class structures. Is there any recommendation which variant to use: fun.class1 <- function(x, ...) fun.class2 <- function(x) It seems, they always work both... Reproducible example: fun.default <- function(x) { print("default") return(x) } fun.class1 <- function(x, ...) { print("class1 ellipsis") res <- x[y] return(res) } fun.class2 <- function(x) { print("class2 only x") res <- x[y] return(res) } my_fun <- function(x) { res <- UseMethod("fun") return(res) }

When parallelizings tests using testNG, tests in a class do not get executed in the same thread

由 本小妞迷上赌 提交于 2020-01-05 03:55:09
问题 testng.xml: <suite name="Default Suite" parallel="classes" thread-count="3"> <test name="example"> <classes> <class name="ExampleTest"/> <class name="ExampleTest2"/> </classes> </test> </suite> test : @Test(singleThreaded = true) public class ExampleTest { @Test public void firstTest() { // first test } @Test(dependsOnMethods = "firstTest") public void secondTest() { // second test depends from first test } } tests run in three Threads, but the first test is in one thread, and the second in

Why am I getting this PHP session_start() error?

由 时光总嘲笑我的痴心妄想 提交于 2020-01-05 03:55:09
问题 I can not figure out why I am getting this session error... Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at C:\webserver\htdocs\project2\labs\form-submits\index.php:2) in C:\webserver\htdocs\project2\labs\form-submits\index.php on line 2 As far as I knew this happens only when there is some sort of output to the browser before the session_start() function is called, in this case there is nothing printed to screen

Forward团队-爬虫豆瓣top250项目-模块开发过程

由 纵饮孤独 提交于 2020-01-05 03:32:56
项目托管平台地址: https://github.com/xyhcq/top250 开发模块功能 : 整合代码：控制是否将信息显示出来 开发时间 : 2 小时左右 实现了：在上一名成员的程序基础上控制是否将信息显示在屏幕上 实现过程：先声明一个变量作为是否显示的开关 # 控制台输出抓取结果 showInfo = 1 showInfo=raw_input('是否需要在窗口显示结果，是为1，否为0，默认值为1：') if showInfo != '1': showInfo=0 else : showInfo =1 在每项信息中加入判断语句： def getData(html): # 分析代码信息，提取数据 soup = BeautifulSoup(html, "html.parser") # 找到第一个class属性值为grid_view的ol标签 movieList=soup.find('ol',attrs={'class':'grid_view'}) # 找到所有的li标签 for movieLi in movieList.find_all('li'): # 找到第一个class属性值为hd的div标签 movieHd=movieLi.find('div',attrs={'class':'hd'}) # 找到第一个class属性值为title的span标签 #也可使用
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