Difference between revisions of "Data Type"
| Line 1: | Line 1: | ||
=Definition= | =Definition= | ||
| + | A data type is an attribute of data that tells the compiler how the programmer intends on using the data. A data type limits the values that an expression might take. | ||
=Relevance= | =Relevance= | ||
=Explanation= | =Explanation= | ||
| + | Information falls under a different data type. Different data types are used for different intents: for math you may use integers, floats, doubles, etc. while for keeping a contact list, strings would be more appropriate. | ||
| + | As mentioned before, data types limit which operations can be used on them. A string cannot be added to an integer because an integer can only be a whole number while a string can be a name, address, etc. However, an integer can be added to a string, this is known as [[Concatenation]]. It’s all about using the right data type for the right job. | ||
| − | + | =Example= | |
| + | Here's an example of a few different types of variables being initialized: | ||
| + | {| class="DataTable" | ||
| + | |- | ||
| + | |string name = “John Doe”; | ||
| + | |- | ||
| + | |int age = 20; | ||
| + | |- | ||
| + | |bool isStudent= true; | ||
| + | |- | ||
| + | |float payrate= 12.50f; | ||
| + | |- | ||
| + | |} | ||
=Resources= | =Resources= | ||
Revision as of 15:23, 19 June 2019
Contents
Definition
A data type is an attribute of data that tells the compiler how the programmer intends on using the data. A data type limits the values that an expression might take.
Relevance
Explanation
Information falls under a different data type. Different data types are used for different intents: for math you may use integers, floats, doubles, etc. while for keeping a contact list, strings would be more appropriate. As mentioned before, data types limit which operations can be used on them. A string cannot be added to an integer because an integer can only be a whole number while a string can be a name, address, etc. However, an integer can be added to a string, this is known as Concatenation. It’s all about using the right data type for the right job.
Example
Here's an example of a few different types of variables being initialized:
| string name = “John Doe”; |
| int age = 20; |
| bool isStudent= true; |
| float payrate= 12.50f; |
