• Source: Nullary constructor

In computer programming, a nullary constructor is a constructor that takes no arguments. Also known as a 0-argument constructor, no-argument constructor, parameterless constructor or default constructor.




Object-oriented constructors


In object-oriented programming, a constructor is code that is run when an object is created. Default constructors of objects are usually nullary.




= Java example

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Algebraic data types


In algebraic data types, a constructor is one of many tags that wrap data. If a constructor does not take any data arguments, it is nullary.




= Haskell example

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References

Kata Kunci Pencarian:

• Nullary constructor
• Default constructor
• Constructor (object-oriented programming)
• Type constructor
• Kind (type theory)
• Tagged union
• Enumerated type
• Comparison of programming languages (basic instructions)
• C++23
• Term algebra