What is data type and types of data type?

Overview. A data type is a classification of data which tells the compiler or interpreter how the programmer intends to use the data . Most programming languages support various types of data, including integer, real, character or string, and Boolean.

Data Types in Java

Data type is an attribute associated with a piece of data that tells a computer system how to interpret its value . Understanding data types ensures that data is collected in the preferred format and the value of each property is as expected.