What that means is that it describes the shape of the constructor What is the use of { } here You are right it is a type
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It is the type of a class whose constructor takes in no arguments
Consider the following examples function create<t>(c
T { return new c() } what this means is that the function create takes an. A new expression is the whole phrase that begins with new So what do you call just the new part of it
If the new() generic constraint is applied, as in this example, that allows the class or method (the authenticationbase<t> class in this case) to call new t() To construct a new instance of the specified type There is no other way, short of reflection (this includes using system.activator, to construct a new object of a generic type. The introduction documents dedicate many paragraphs to explaining the difference between new() and make(), but in practice, you can create objects within local scope and return them
Note that if you declared it var a = new { }
And var o = new object();, then there is one difference, former is assignable only to another similar anonymous object, while latter being object, it can be assigned to anything. You should use new when you wish an object to remain in existence until you delete it If you do not use new then the object will be destroyed when it goes out of scope. According to this reference for operator new
Global dynamic storage operator functions are special in the standard library All three versions of operator new are declared in the global namespac. In the specific case of throw, throw new() is a shorthand for throw new exception() As you can see, there are quite a few places where it can be used (whenever the type to be created can be inferred) to make code shorter
The place where i like it the most is for fields/properties
I am fresher in java ,i have a doubt in java that is string array= new string[]{}
