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  2. Immutable object - Wikipedia

    en.wikipedia.org/wiki/Immutable_object

    In object-oriented (OO) and functional programming, an immutable object (unchangeable [1] object) is an object whose state cannot be modified after it is created. [2] This is in contrast to a mutable object (changeable object), which can be modified after it is created. [3]

  3. String (computer science) - Wikipedia

    en.wikipedia.org/wiki/String_(computer_science)

    Some of these languages with immutable strings also provide another type that is mutable, such as Java and .NET's StringBuilder, the thread-safe Java StringBuffer, and the Cocoa NSMutableString. There are both advantages and disadvantages to immutability: although immutable strings may require inefficiently creating many copies, they are ...

  4. Immutable interface - Wikipedia

    en.wikipedia.org/wiki/Immutable_interface

    In object-oriented programming, "immutable interface" is a pattern for designing an immutable object. [1] The immutable interface pattern involves defining a type which does not provide any methods which mutate state. Objects which are referenced by that type are not seen to have any mutable state, and appear immutable.

  5. String interning - Wikipedia

    en.wikipedia.org/wiki/String_interning

    In computer science, string interning is a method of storing only one copy of each distinct string value, which must be immutable. [1] Interning strings makes some string processing tasks more time-efficient or space-efficient at the cost of requiring more time when the string is created or interned.

  6. Purely functional data structure - Wikipedia

    en.wikipedia.org/wiki/Purely_functional_data...

    The main difference between an arbitrary data structure and a purely functional one is that the latter is (strongly) immutable. This restriction ensures the data structure possesses the advantages of immutable objects: (full) persistency, quick copy of objects, and thread safety.

  7. US citizen detained in Russia for drug possession, says state ...

    www.aol.com/us-citizen-detained-russia-drug...

    Russian customs service detained a 28-year-old US citizen at Vnukovo Airport in Moscow for possession of cannabis-laced marmalade, according to Russian state media agency TASS.

  8. Value type and reference type - Wikipedia

    en.wikipedia.org/wiki/Value_type_and_reference_type

    Many languages have explicit pointers or references. Reference types differ from these in that the entities they refer to are always accessed via references; for example, whereas in C++ it's possible to have either a std:: string and a std:: string *, where the former is a mutable string and the latter is an explicit pointer to a mutable string (unless it's a null pointer), in Java it is only ...

  9. The son of an 82-year-old grandfather and widower found dead in his bed at his Altadena, Calif., home amid the wildfires in the Los Angeles area is recalling the last time he spoke with him ...