Data types are divided into two groups: Primitive data types - includes byte, short, int, long, float, double, boolean and char Non-primitive data types - such as String, Arrays and Classes (you will learn more about these in a later chapter)

In addition to int, the Java programming language supports seven other primitive data types. A primitive type is predefined by the language and is named by a reserved keyword. Primitive values do not share state with other primitive values. The eight primitive data types supported by the Java programming language are:

Apr 7, 2025 · Java has two categories in which data types are segregated. Primitive Data Type: These are the basic building blocks that store simple values directly in memory. Examples of primitive data types are boolean, char, byte, short, int, long, float, and double. Note: The Boolean with uppercase B is a wrapper class for the primitive boolean type.

Even though there are many numeric types in Java, the most used for numbers are int (for whole numbers) and double (for floating point numbers). However, we will describe them all as you continue to read.

The numeric types are the integral types byte, short, int, long, and char, and the floating-point types float and double. The reference types (§4.3) are class types, interface types, and array types. There is also a special null type. An object (§4.3.1) is a dynamically created instance of a class type or a dynamically created array.

Jan 8, 2024 · In this tutorial, we’ll look at what these primitives are and go over each type. 2. Primitive Data Types. The eight primitives defined in Java are int, byte, short, long, float, double, boolean and char. These aren’t considered objects and represent raw values.

May 24, 2023 · All the values in Java are divided into two categories: reference types and primitive types. Learn about all eight primitive data types in Java, their memory sizes, default values, and the maximum and minimum values range.

Nov 11, 2010 · BigDecimal is the best when it comes to maintaining accurate floating point calculations, and being able to specify the desired accuracy. I believe float (and to some extent double) offer performance benefits over BigDecimal, but at the cost of accuracy and usability.

Jan 9, 2025 · Numeric data types in Java are divided into two main categories: Integer Data Types and Floating-Point Data Types. Each type serves specific use cases, with varying ranges and precision levels. This article will explore these categories in detail, providing examples and insights to enhance your understanding.

In this guide, we explore the different numeric types in Java—long, short, byte, float, and double—and the importance of the 'L', 'S', 'B', 'F', and 'D' specifications. Java defaults to interpreting numeric literals as int, leading to type mismatch errors for larger values.