What Is Data Type With Example?


Angela Bailey

What Is Data Type With Example?

When working with programming languages, understanding data types is fundamental. A data type is a classification that determines the type of data that can be stored and manipulated within a program. Each programming language has its own set of data types, but there are some common ones that exist across multiple languages.

1. Numeric Data Types

Numeric data types are used to represent numbers in a program. They can be further classified into:

  • Integer: This data type is used to store whole numbers without decimals. For example, 3, -42, or 0.
  • Float: Also known as floating-point numbers, they represent real numbers with decimal points. For example, 3.14, -0.5, or 1e-5.
  • Double: Similar to float, but with a higher precision and larger range of values it can hold.

2. Text Data Types

In programming, text is represented using string data types.

Strings are sequences of characters enclosed within quotation marks (” “). Here’s an example:

<p>This is an example string.</p>

3. Boolean Data Type

The boolean data type can have one of two values: true or false. It represents logical values and is often used in conditional statements or boolean algebra operations.

4. Array Data Type

An array is a data structure that allows storing multiple values of the same data type in a single variable.

Each value in an array is identified by an index number. Here’s an example:


5. Null and Undefined Data Types

In some languages, null and undefined are used to represent the absence of value or uninitialized variables.


Data types play a crucial role in programming as they determine how data is stored and manipulated. Understanding the different data types available in a programming language is essential for writing efficient and bug-free code.

Now that you have a better understanding of data types, you can confidently move forward with your programming journey!

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