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  2. Object copying - Wikipedia

    en.wikipedia.org/wiki/Object_copying

    The following presents examples for one of the most widely used object-oriented languages, Java, which should cover nearly every way that an object-oriented language can treat this problem. Unlike in C++, objects in Java are always accessed indirectly through references. Objects are never created implicitly but instead are always passed or ...

  3. Copy-on-write - Wikipedia

    en.wikipedia.org/wiki/Copy-on-write

    For example, strings and arrays are passed by reference, but when modified, they are duplicated if they have non-zero reference counts. This allows them to act as value types without the performance problems of copying on assignment or making them immutable. [8] In the Qt framework, many types are copy-on-write ("implicitly shared" in Qt's terms).

  4. APL (programming language) - Wikipedia

    en.wikipedia.org/wiki/APL_(programming_language)

    array data valued object of zero or more orthogonal dimensions in row-major order in which each item is a primitive scalar datum or another array. [68] niladic not taking or requiring any arguments, nullary [69] monadic requiring only one argument; on the right for a function, on the left for an operator, unary [69] dyadic

  5. Comparison of programming languages (syntax) - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_programming...

    MATLAB: The ellipsis need not end the line, but text following it is ignored. [5] It begins a comment that extends through (including) the first subsequent newline. Contrast this with a line comment which extends until the next newline.

  6. Speakeasy (computational environment) - Wikipedia

    en.wikipedia.org/wiki/Speakeasy_(computational...

    $ The following example shows how a Matrix-family object and an Array-family object $ with the same structure and values are operated on differently although using the $ same "*" and "/" operator: in the first case using the matrix algebra and in the $ second case operating on an element-by-element basis.

  7. Protocol Buffers - Wikipedia

    en.wikipedia.org/wiki/Protocol_Buffers

    For example, example.pb.cc and example.pb.h are generated from example.proto. They define C++ classes for each message and service in example.proto . Canonically, messages are serialized into a binary wire format which is compact, forward- and backward-compatible , but not self-describing (that is, there is no way to tell the names, meaning, or ...

  8. Java syntax - Wikipedia

    en.wikipedia.org/wiki/Java_syntax

    A snippet of Java code with keywords highlighted in bold blue font. The syntax of Java is the set of rules defining how a Java program is written and interpreted. The syntax is mostly derived from C and C++. Unlike C++, Java has no global functions or variables, but has data members which are also regarded as global variables.

  9. APL syntax and symbols - Wikipedia

    en.wikipedia.org/wiki/APL_syntax_and_symbols

    Some functions can be followed by an axis indicator in (square) brackets, i.e., this appears between a function and an array and should not be confused with array subscripts written after an array. For example, given the ⌽ (reversal) function and a two-dimensional array, the function by default operates along the last axis but this can be ...