For several HTML forms, I want to configure inputs and deal with their values. My types have the following structure (you may copy it to TypeScript Playground http://www.typescriptlang.org/play to see it in action): interface InputConfig { readonly i
I have seen that constructors aren't allowed within an interface, however how is this allowed?: locationListener = new LocationListener() { etc }Yes you are right interfaces can't have constructors but what you described is Anonymous Class. In this l
I have created a separate class for the background process. In that, I have two classes and an interface. I am getting string data from the first class and then based on that data I am getting a list of data in another class. The whole process is wor
I am relatively new to Java - especially when it comes to interfaces and abstract classes (I do know how to use them), however in this case i am a bit confused how i should setup my architecture. First of all, i'd like to say that this is just a proj
I have several structs which I fill with data from MongoDB. type Dog struct { Id string Age int } type Invoice struct { Id int Amount float } I was trying to make a function like this: func LookUp(collection string, ids []string) []interface{} { // I
i want to show a name.name may be in uppercase or in lowercase this will be depend on which class i will pass.i have to approach one is using class and second is interface which one is better and why ? Solution using Class class User{ } class Iuser e
I read below topic Go: multiple value in single-value context But I don't understand this explain in my case. May be that's way because I want to use interface I get error multiple-value NewObject() in single-value context in below case type Facade i
How can I assign SomeEnum1 or SomeEnum2 to an "enum" which implements SomeInterface? I can't just specify the interface directly as it's a class and not an enum. I'm sure there is a specify syntactic sugar to make this work but I can't figure it
I am trying to bind my local IPv6 address to a socket. But always get "invalid argument". The reason I want to bind the specific IP address to socket is that if I don't bind the error "No route to host" came up. When I tried to ping an
I am confused with a design problem in Java. It realized many abstract containers under the interface Collection and provides the method hasNext() and Next() along with class Iterator. What is the drawback if I put these methods directly under interf
From what I understand on interfaces, is that in order to use them, you must declare that a class is implementing it by adding the name of the interface after a colon and then, implement the methods. I'm currently learning about Enumerators, IEnumera
I'm going insane!! I don't manage to pass data from a fragment(A) to an another fragment(B). I read about using a public interface... and it seems to work, but i don't understand how to use this method. Fragment(A) package it.anddev.pagertabs; public
This question already has an answer here: Create instance of generic type in Java? 23 answers I have the following Java class public class MyClass <T extends MyInterface> implements RowMapper<MyInterface> I'm implementing the following method:
I ran into a peculiar issue I was curious about (and would like to find a workaround for). If I declare a variable NODES in my class: private static final String NODES = "nodes"; Everything works ok. However, if I declare the variable in an inte
When I add an "XmlAttribute/XmlElement" to a property in an Interface and 100 other classes inherit from this interface, when Serializing the object to XML - why doesn't the attributename I entered show up in the XML file after serialization? in
This time, I'm gonna create a math problems. I plan to have a dictionary where the key is Levels enum {Easy, Medium, Hard} and value should contain some configuration about how to create the problems. For example: BinaryProblemConfiguration + Bound1
While reading about constant interface antipattern, i found final constant class with no instances is better than constant interface. Please explain me how? public interface ConstIfc { public static final int constValue = 10; } public final class Con
So I was looking at Google's I/O App, iosched, and I notice they implement constants through a nested interface. For example in their ScheduleDatabase class they have: public class ScheduleDatabase extends SQLiteOpenHelper { interface Tables { String
I have method calls that take different inputs, i.e: public Authors GetAuthors(string name, string sortBy, string sortDir, int startRow, int numRow) { // Get authors based on filters } public Books GetBooks(string id, string year, string sortBy, stri
I have an Object[] in Java and want to convert it to IProject[], which is a Java interface (org.eclipse.core.resources.IProject), in order to write a plugin for eclipse. Is this possible? RegardsYou can't convert the array itself - arrays know the ty
I'm working on some server/client based application at the moment. The application is multi-threaded, has plugin-support (via dlopen,...) and should work with multiple databases. Now I'm looking for some hints to start the design of the DBI-ABC. Firs
I'm trying to use c++ iterators with interfaces, but does not manage to make it working. I'm a bit lost with what type to choose for the vector contents. Is this need to be a pointer ? do I have to make a "new Implementation()"? In brief, it is
I would like to use the same code for copying files to an FTP server, and through USB. I've already written some code, which as of now uses functions from the System.IO namespace. To minimize code duplication, I've listed the functions which I need f
This could potentially be a dumb question so apologies in advance if it is. I'm wondering if theres an equivilant of Interfaces in MXML? Everytime I feel the need to use an interface I always wind up making an actionscript and not an MXML file becaus
I have a windows form application in which I'm attempting to utilize a plugin (class library). In the code I have it load the assembly from a dll file, which means I have not been able to debug. Furthermore I have not found out how to compile the lib
In .NET, one can specify a "mustoverride" attribute to a method in a particular superclass to ensure that subclasses override that particular method. I was wondering whether anybody has a custom java annotation that could achieve the same effect
considering i have a method which gets a List passed as an param. Within this method i want to use for instance an ArrayList specific function on that list (lets say trimToSize()). What would be the general approach to deal with a problem like this ?
I've asked this question yesterday and got lots of good answers, only I just realized my question was wrong and here I want to rephrase it. I have this interface public interface IFoo<T> { T Value(); } With this members public class Bar : IFoo<st
I am creating a method that accepts a IOBJECT parameter. there is multiple class that implement this interface. I need to figure out which type IOBJECT is. how would i go about doing thatIt's not ideal, but you can use the "is" operator. Throw i
I m trying to understand Interfaces so that I can implement them in my programs but I m not able to imagine how should i use them. Also give me some eg of using them with multiple inheritance in C#A good example for an interface is a repository patte
