methods

问题 I have two classes, in class Player i have the variable which is defined as private int collectedDots and I want to access in another class Exit . I have defined the Get and Set method within class Player as such: public void setCollectedDots(int cd) { collectedDots = cd; } public int getCollectedDots() { return collectedDots; } But now I want to access the collectedDots field from the Exit class. When I copy those two methods into the Exit class I keep getting the error cannot find symbol -

问题 So I have 3 Parallel Arrays. I need a method that will allow for the user to add to these arrays. As well as another method to be able to identify a certain item and remove it. As well as another method to identify an item and edit/change the contents of that item in the array. These are my 3 arrays... I need to add the brand name of the computer to: String[] computerBrand I need to add the processor speeds to: double[] computerSpeed and I need to add the computers price to: double[]

问题 Is it possible to have a decorator that makes a method work like an attribute if values are assigned to it using class.something = 2 and work like a method if it is called like class.something(2, True) ? What I currently have To be more concrete, I currently have the following class attributeSetter(object): ''' Makes functions appear as attributes. Takes care of autologging.''' def __init__(self, func): self.func = func def __set__(self, obj, value): return self.func(obj, value) def __repr__

问题 I have a problem invoking a submit method in web page This is my code Webbrowser.document.forms(0).invokemember("submit") It does nothing. Here is the html <form name="myWebForm" action="myServerSideScript.php" method="post"> <input type="checkbox" /> Checkbox 1<br /> <input type="text" /> Text Field 1<br /> <input type="submit" value="SUBMIT" /> </form> 回答1: You must set .AllowNavigation property to "TRUE" Webbrowser.AllowNavigation = True And call submit method like this Webbrowser.Document

问题 I'm trying to teach myself some java and this is my code, but these are the errors that i'm getting as soon as i make my first input telling the program which conversion mode to go into. Any help is appreciated import java.util.Scanner; public class TempConverter { public static void cToF(){ double C=0, F=0, mode= 0; Scanner input = new Scanner(System.in); System.out.println("Enter your temperature in Celsius."); C = input.nextDouble(); input.close(); F = ((double)9/(double)5*C)+32; System

问题 I have been learning about AJAX and I am a little confused on which order the methods inside an AJAX call are executed. I have seen too many variations. For example function submitArticle() { try { //alert("yaay"); xhr = new XMLHttpRequest(); } catch(e) { try { xhr = new ActiveXObject("Microsoft.XMLHTTP"); } catch(e) { try { xhr = new ActiveXObject("Msxml2.XMLHTTP"); } catch(e) { alert("Your Browser is not Supported"); return false; } } } var parameters = "postTitle=" + postTitle "&postDes="

问题 I am currently trying to add an assembly into report builder 3.0 to execute a method and return the result: But I always get "#Error" in the preview. Even whe the method is that simple: public static string Test() { return "test"; } Reference is set the following: Expression is: =TestNamespace.TestClass.Test() The assembly is registered in GAC and it seems that the method is being checked for availableness. Elsewise I get a different error. 回答1: I finally fixed it. Important is to set the

问题 I am currently struggling to get the following code to compile. First the header file containing a class with a method template: // ConfigurationContext.h class ConfigurationContext { public: template<typename T> T getValue(const std::string& name, T& default) const { ... } } Somewhere else I want to call this method like this: int value = context.getValue<int>("foo", 5); There I get the following error: error: no matching function for call to 'ConfigurationContext::getValue(const std::basic

问题 Can anyone explain how the memory allocation is done while invoking a method having list collection as parameter. Since the code snippet below though apparently seems to result same but it is not resulting same. So I would like to know the difference in both the method call in terms of memory allocation. using System; using System.Collections.Generic; namespace ListSample { class ListSampleClass { static void Main(string[] args) { List<int> i = new List<int>(); i.Add(10); i.Add(15);

问题 In C#, if I had a widget definition, say: class widget { public string PrettyName() { ... do stuff here } } and I wanted to allow for easy printing of a list of Widgets, I might do this: namespace ExtensionMethods { public static PrintAll( this IEnumerable<Widget> widgets, TextWriter writer ) { foreach(var w in widgets) { writer.WriteLine( w.PrettyName() ) } } } How would I accomplish something similar with a record type and a collection (List or Seq preferrably in F#). I'd love to have a