What Is Data Type Example?


Angela Bailey

When writing code in any programming language, understanding data types is essential. Data types define the type of data that can be stored and manipulated within a program.

Each programming language has its own set of data types, but they generally serve similar purposes. In this article, we will explore what data types are and provide examples to help illustrate their usage.

What Are Data Types?

Data types in programming languages categorize different kinds of data that a program can work with. They determine the operations that can be performed on the data and define the memory space required to store it. Common data types include numbers, characters, strings, booleans, arrays, and more.

Example Data Types

Numeric Data Types

A numeric data type represents numerical values such as integers (whole numbers) or floating-point numbers (decimal numbers). Examples of numeric data types include:

  • Integer: A whole number without any decimal places.

    For example: 5

  • Float: A number with decimal places. For example: 3.14

Character Data Type

The character data type represents a single character or symbol. It is often used to store letters, digits, or special characters within a program.

  • Char: A single character enclosed in single quotes. For example: ‘A’

String Data Type

A string data type represents a sequence of characters or text. It is used to store words, sentences, or any combination of characters within a program.

  • String: A sequence of characters enclosed in double quotes.

    For example: “Hello, World! “

Boolean Data Type

A boolean data type represents a value that is either true or false. It is often used for logical comparisons and conditional statements.

  • Boolean: A value that can be either true or false. For example: true

Array Data Type

An array data type represents a collection of elements of the same type. It allows storing multiple values under a single variable name.

  • Array: A collection of elements enclosed in square brackets. For example: [1, 2, 3, 4, 5]


Data types play a crucial role in programming as they define the kind of data that can be stored and manipulated within a program. Understanding and correctly using data types is essential for writing efficient and bug-free code. In this article, we explored various data types such as numeric, character, string, boolean, and array types with examples to help illustrate their usage.

By mastering data types and their usage in programming languages, developers can write more robust and reliable code.

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