Data types

What is a user-defined data type?

A data type created by a programmer, defining how the computer stores, reads, and operates on values.

What is a built-in data type?

A data type that has already been defined by the programming language.

What separates a built-in data type from a user-defined data type?

A built-in data type has a predefined range of values that can be stored and operations it can perform. whereas built-in data types are customizable.

What are abstract data types?

 

 Abstract data types describe different methods of storing and operating on the data. There are many ADTs and the operations they perform stay the same but how they accomplish it changes.

What are non-composite data types?

Also called primitive data types, they can only store one element.

What are composite data types?

Data types that can store multiple elements, such as lists and strings.

What is an enumerated data type?

A user-defined data type that holds all possible values for a variable, used to create a list of distinct options.

What is a pointer?

A primitive data type that stores the memory location of another variable.

What is a set in programming?

A collection similar to a list, but non-indexable, with no repeating values, following set theory principles.

What is an example of a composite user-defined data type?

A record, such as a class that organizes multiple attributes of an object, like a book with title, author, and price.

How can you create your own user-defined data type?

By defining a class that contains properties and methods to manage the data.