methods

问题 There is something that i don't understand about ruby class instance variable or methods** . So i have this code that keeps on giving me this error and i cant understand Looks ruby thinks that i am trying to call for Float.in_celsius but I want to make this call within my class instance. #----------------------------------- def ftoc(fr) fr = fr.to_f if (fr == 32) c = 0 elsif (fr == 212) c = 100 else c = (fr-32.0)*(5.0/9.0) end return c end def ctof (cl) cl = cl.to_f f = (cl*(9.0/5.0))+32.0

问题 Here is a package.js file Package.describe({ summary: 'Client Collection Paging Class designed for use with Meteor' }); Package.on_use(function (api) { api.use( 'underscore', [ 'client', 'server' ] ) ; api.use( 'ejson', [ 'client', 'server' ] ) ; api.add_files( 'lib/pageMan.js', 'client' ) ; //api.add_files( 'lib/pageMan_publish.js', 'server' ) ; //api.add_files( 'lib/pageMan_method.js', [ 'client', 'server' ] ) ; if ( typeof api.export !== 'undefined' ) { api.use( 'webapp', 'server' ) ; Npm

问题 First time for me here ! I have an issue with Visual Studio 2015 Enterprise. When, for exemple I enter the line for a form : WaitingTickets.(list of methods/properties) Missing Stuff I get some, but not all . For exemple, it doesn't show WaitingTickets. Show() in the list. Same with public variables, the list doesn't show public variables between forms. The fun thing is, on one computer it work perfectly, and on this one it doesn't. No modification where done. I tried the resetsettings,

问题 In my app I have a lot of copy and paste code that is exactly the same and performs exactly the same function (button click events and the like). These redundant code live in the code-behind of many of my pages. So I decided to reduce the code duplication and to move these methods into a class file and only make a call to them from the code-behind pages. Here is an example of a button click event in my code behind calling the methods from a class file: #region DELETE selected users - button

问题 i'm new in abap (OO) but developed before in java and wrote a class abap "cl_caretaker" which should handle the operations on database table and the local copy (intern table) of it. I want to make the following method call: caretaker->show_table( caretaker->get_users( ) ) . with: caretaker = cl_caretaker=>get_instance( ). "singleton instance METHODS: "! get a list of all user which registrated for FCP "! "! @parameter rt_users | users which are registrated for FCP get_users RETURNING value(rt

问题 We have a Java class, WebCenterGrid. This class is full of methods to do things in a grid such as finding a row, finding a cell value, sorting a column. We have several classes that use this class. The classes using it all refer to different grids, but the functionality is the same. The only thing that differs is how to create the grid. Some classes do a search which populates the grid (search also refreshes). Some do an updateList() to update the grid, etc. I would like to add a method to

问题 I'm having trouble understanding how to properly set up a contains method in my class. I know it automatically uses the operator "in" when you call it, i just don't think I understand how to set it up correctly. I have to use it to see if anotherCircle is contained within a specific circle (both input from the user). The prof had us do two different types of methods for this. The first one I have no problems with and more or less understand what it is doing, It is as follows: def contains

问题 Can we call main method inside main? public static void main(String[] args) { main({"a","b","c"}); } Tried to google.Can't find the link. Sorry if the question is trivial 回答1: You can but using the correct format main(new String[] {"a","b","c"}); should give StackOverFlowError (not tested) 回答2: You will get StackOverFlowError. If you call endless recursive calls/deep function recursions. Thrown when a stack overflow occurs because an application recurses too deeply. You need to pass String

问题 I have multithreaded application with some background processing. It has long-running UI updates (on the UI-thread itself), which are invoked from the background thread via the well-known resource on MSDN. I can not shorten these UI updates since they are finally done in a external library(1). Now, from that background thread, I want to asynchronously invoke (using BeginInvoke() ) these updates on the UI thread, but only if the previous update has finished yet. If not, I would like to simply

问题 I have a peculiar requirement where I need ensure that only a particular method from one class is allowed to call a public (non-static) method from a second class. Inheritance cannot be used. One option is to use StackTrace as follows: ClassA.java package org.rnd.stack; public class ClassA { public void methodA() throws IllegalAccessException { Exception fake = new Exception("FAKE-IGNORE"); StackTraceElement[] stack = fake.getStackTrace(); StackTraceElement st = stack[1]; if ("org.rnd.stack