The significance of in C#

You’re looking at some decompiled code – specifically, something that was generated by the compiler. The compiler uses <> (this is an implementation detail) because, whilst it’s valid for a CLR identifier to start with such characters, it’s not valid in C# – so it’s guaranteed that the name will not conflict with any names … Read more

What is the most efficient way to initialize a Class in Ruby with different parameters and default values?

The typical way to solve this problem is with a hash that has a default value. Ruby has a nice syntax for passing hash values, if the hash is the last parameter to a method. class Fruit attr_accessor :color, :type def initialize(params = {}) @color = params.fetch(:color, ‘green’) @type = params.fetch(:type, ‘pear’) end def to_s … Read more

What’s the ampersand for when used after class name like ostream& operator

In that case you are returning a reference to an ostream object. Strictly thinking of ampersand as “address of” will not always work for you. Here’s some info from C++ FAQ Lite on references. As far as const goes, const correctness is very important in C++ type safety and something you’ll want to do as … Read more

C# code to class diagram [closed]

Try NClass it’s cool in short , I have tried it myself. Features: Simple User Interface. Free UML class diagram tool specially for C#. From diagram to Code generation. Classic style class diagrams. Visual Studio style class diagrams 😉 NOTE: If you are a student then your school or university can provide you Visual Studio … Read more

Java: How can I access a class’s field by a name stored in a variable?

You have to use reflection: Use Class.getField() to get a Field reference. If it’s not public you’ll need to call Class.getDeclaredField() instead Use AccessibleObject.setAccessible to gain access to the field if it’s not public Use Field.set() to set the value, or one of the similarly-named methods if it’s a primitive Here’s an example which deals … Read more