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  2. Anonymous function - Wikipedia

    en.wikipedia.org/wiki/Anonymous_function

    The names "lambda abstraction", "lambda function", and "lambda expression" refer to the notation of function abstraction in lambda calculus, where the usual function f (x) = M would be written (λx. M), and where M is an expression that uses x. Compare to the Python syntax of lambda x: M.

  3. Closure (computer programming) - Wikipedia

    en.wikipedia.org/wiki/Closure_(computer_programming)

    As of Java 8, Java supports functions as first class objects. Lambda expressions of this form are considered of type Function<T,U> with T being the domain and U the image type. The expression can be called with its .apply(T t) method, but not with a standard method call.

  4. Java syntax - Wikipedia

    en.wikipedia.org/wiki/Java_syntax

    The Java syntax has been gradually extended in the course of numerous major JDK releases, and now supports abilities such as generic programming and anonymous functions (function literals, called lambda expressions in Java). Since 2017, a new JDK version is released twice a year, with each release improving the language incrementally.

  5. Lambda expression - Wikipedia

    en.wikipedia.org/wiki/Lambda_expression

    Lambda expression may refer to: Lambda expression in computer programming, also called an anonymous function , is a defined function not bound to an identifier. Lambda expression in lambda calculus , a formal system in mathematical logic and computer science for expressing computation by way of variable binding and substitution.

  6. Partial application - Wikipedia

    en.wikipedia.org/wiki/Partial_application

    In the simply-typed lambda calculus with function and product types (λ →,×) partial application, currying and uncurrying can be defined as papply (((a × b) → c) × a) → (b → c) = λ(f, x). λy. f (x, y) curry ((a × b) → c) → (a → (b → c)) = λf. λx. λy. f (x, y) uncurry (a → (b → c)) → ((a × b) → c) = λf. λ(x, y ...

  7. Functional programming - Wikipedia

    en.wikipedia.org/wiki/Functional_programming

    Java 8 supports lambda expressions as a replacement for some anonymous classes. [107] In C#, anonymous classes are not necessary, because closures and lambdas are fully supported. Libraries and language extensions for immutable data structures are being developed to aid programming in the functional style in C#.

  8. J operator - Wikipedia

    en.wikipedia.org/wiki/J_operator

    In computer science, Peter Landin's J operator is a programming construct that post-composes a lambda expression with the continuation to the current lambda-context. The resulting “function” is first-class and can be passed on to subsequent functions, where if applied it will return its result to the continuation of the function in which it was created.

  9. Lazy evaluation - Wikipedia

    en.wikipedia.org/wiki/Lazy_evaluation

    Java's lambda expressions are just syntactic sugar. Anything that can be written with a lambda expression can be rewritten as a call to construct an instance of an anonymous inner class implementing the interface, [ a ] and any use of an anonymous inner class can be rewritten using a named inner class, and any named inner class can be moved to ...