The correct answer is Data Type.
A data type is a classification of data that tells the computer how to store and process the data. The most common data types are integers, floating-point numbers, characters, and strings.
- Integers are whole numbers, such as 1, 2, 3, and so on.
- Floating-point numbers are numbers that can have a decimal point, such as 3.14, 2.718, and so on.
- Characters are single letters, numbers, or symbols, such as ‘A’, ‘1’, or ‘@’.
- Strings are sequences of characters, such as “Hello, world!” or “This is a string.”
The data type of a variable determines what kind of data can be stored in the variable and how the data can be used. For example, an integer variable can only store whole numbers, while a floating-point variable can store numbers with decimal points.
When declaring a variable, it is important to specify the data type of the variable. This will help the compiler to ensure that the variable is used correctly. For example, the following code declares a variable named x of type int:
int x;
This code will allow the variable x to store an integer value. If the code tried to store a floating-point value in x, the compiler would generate an error.
Data types are an important concept in programming. By understanding data types, you can ensure that your code is correct and efficient.