Tutorial by Topics: i

When you use the yield keyword in a statement, you indicate that the method, operator, or get accessor in which it appears is an iterator. Using yield to define an iterator removes the need for an explicit extra class (the class that holds the state for an enumeration) when you implement the IEnumer...

One of MEF's big advantages over other technologies that support the inversion-of-control pattern is that it supports resolving dependencies that are not known at design-time, without needing much (if any) configuration. All examples require a reference to the System.ComponentModel.Composition as...

LINQ is an acronym which stands for Language INtegrated Query. It is a concept which integrates a query language by offering a consistent model for working with data across various kinds of data sources and formats; you use the same basic coding patterns to query and transform data in XML documents,...

SpeechRecognitionEngine() SpeechRecognitionEngine.LoadGrammar(Grammar grammar) SpeechRecognitionEngine.SetInputToDefaultAudioDevice() SpeechRecognitionEngine.RecognizeAsync(RecognizeMode mode) GrammarBuilder() GrammarBuilder.Append(Choices choices) Choices(params string[] choices) Grammar(G...

Expression Trees are Expressions arranged in a treelike data structure. Each node in the tree is a representation of an expression, an expression being code. An In-Memory representation of a Lambda expression would be an Expression tree, which holds the actual elements (i.e. code) of the query, but ...

The process of overload resolution is described in the C# specification, section 7.5.3. Also relevant are the sections 7.5.2 (type inference) and 7.6.5 (invocation expressions). How overload resolution works will probably be changed in C# 7. The design notes indicate that Microsoft will roll out ...

The Format methods are a set of overloads in the System.String class used to create strings that combine objects into specific string representations. This information can be applied to String.Format, various WriteLine methods as well as other methods in the .NET framework. string.Format(strin...

In order to be able to use the unsafe keyword in a .Net project, you must check "Allow unsafe code" in Project Properties => Build Using unsafe code can improve performance, however, it is at the expense of code safety (hence the term unsafe). For instance, when you use a for lo...

When deciding on how to create a property, start with an auto-implemented property for simplicity and brevity. Switch to a property with a backing field only when circumstances dictate. If you need other manipulations beyond a simple set and get, you may need to introduce a backing field.

The Java programming language is... General-purpose: It is designed to be used for writing software in a wide variety of application domains, and lacks specialized features for any specific domain. Class-based: Its object structure is defined in classes. Class instances always have those...

If you want to learn more about the Android Gradle Plugin setting check out the android-gradle Documentation. If you are interested in alternative emulators, you could look at Genymotion. It provides a free plan and requires smaller amount of RAM. VersionAPI LevelVersion CodeRelease Date1.01B...

Inheritance is a basic object oriented feature in which one class acquires and extends upon the properties of another class, using the keyword extends. For Interfaces and the keyword implements, see interfaces. class ClassB extends ClassA {...} class ClassB implements InterfaceA {...} interf...

Objects of type Throwable and its subtypes can be sent up the stack with the throw keyword and caught with try…catch statements. void someMethod() throws SomeException { } //method declaration, forces method callers to catch if SomeException is a checked exception type try { someMethod();...

The collections framework in java.util provides a number of generic classes for sets of data with functionality that can't be provided by regular arrays. Collections framework contains interfaces for Collection<O>, with main sub-interfaces List<O> and Set<O>, and mapping collectio...

Lambda expressions provide a clear and concise way of implementing a single-method interface using an expression. They allow you to reduce the amount of code you have to create and maintain. While similar to anonymous classes, they have no type information by themselves. Type inference needs to happ...

Generics are a facility of generic programming that extend Java's type system to allow a type or method to operate on objects of various types while providing compile-time type safety. In particular, the Java collections framework supports generics to specify the type of objects stored in a collecti...