params

Considering this code namespace ConsoleApplication1 { class Program { static void Main(string[] args) { string[] strings = new string[] { "Test1", "Test2", "Test3" }; int[] ints = new int[] { 1, 2, 3, 4 }; Test(strings); Test(ints); } public static void Test(params object[] objects) { } } } And this page https://msdn.microsoft.com/fr-ca/library/w5zay9db.aspx I would expect (params object[] objects) to be an array of one element with a string[] as the first element, but when I debug, I see that (params object[] objects) is { "Test1", "Test2", "Test3" }. However, with an int[], I get an object[]

I have created a custom view named Graphview . Here is the structure for the GraphView class. public class GraphView extends View { public GraphView(Context context, float[] values, String title, String[] horlabels, String[] verlabels, boolean type) { super(context); ........ } .................. ................. } I have added the view in a tablerow using addview() . It is working fine. Now I want to set height and width for the GraphView . How to do that? The easy way is to set the size programatically like that : graphView.setLayoutParams(new LayoutParams(width, height)); This is fine if

Using select_date gives me back a params[:my_date] with year , month and day attributes. How do get a Date object easily? I'm hoping for something like params[:my_date].to_date . I'm happy to use date_select instead as well. Using date_select gives you 3 separate key/value pairs for the day, month, and year respectively. So you can pass them into Date.new as parameters to create a new Date object. An example date_select returned params for an Event model: "event"=> {"name"=>"Birthday", "date(1i)"=>"2012", "date(2i)"=>"11", "date(3i)"=>"28"}, Then to create the new Date object: event = params[

Does C# support a variable number of arguments? If yes, How does C# support variable no of arguments? What are the examples? How are variable arguments useful? EDIT 1 : What are the restrictions on it? EDIT 2 : The Question is not about Optional param But Variable Param Yes. The classic example wourld be the params object[] args : //Allows to pass in any number and types of parameters public static void Program(params object[] args) A typical usecase would be passing parameters in a command line environment to a program, where you pass them in as strings. The program has then to validate and

In C#, if you want a method to have an indeterminate number of parameters, you can make the final parameter in the method signature a params so that the method parameter looks like an array but allows everyone using the method to pass as many parameters of that type as the caller wants. I'm fairly sure Java supports similar behaviour, but I cant find out how to do it. David Grant In Java it's called varargs , and the syntax looks like a regular parameter, but with an ellipsis ("...") after the type: public void foo(Object... bar) { for (Object baz : bar) { System.out.println(baz.toString()); }

Say I have the following methods: public static void MyCoolMethod(params object[] allObjects) { } public static void MyCoolMethod(object oneAlone, params object[] restOfTheObjects) { } If I do this: MyCoolMethod("Hi", "test"); which one gets called and why? It's easy to test - the second method gets called. As to why - the C# language specification has some pretty detailed rules about how ambiguous function declarations get resolved. There are lots of questions on SO surrounding interfaces, inheritance and overloads with some specific examples of why different overloads get called, but to