Integer types stores whole numbers, positive or negative (such as 123 or -456), without decimals. Valid types are byte, short, int and long. Which type you should use, depends on the numeric value. Floating point types represents numbers with a fractional part, containing one or more decimals. There are two types: float and double.

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)

Learn essential Java numeric data type techniques, including basic operations, type conversions, and handling numeric values efficiently in your Java programming projects.

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. Integer Data Types: byte, short ...

May 24, 2023 · Learn about all eight primitive data types in Java, their memory sizes, default values, and the maximum and minimum values range. 1. Java Primitive Types. Primitive data types are predefined by the Java Language and named by a reserved keyword. All primitive types can be divided into two groups: boolean types and numeric types.

Learn essential techniques for representing and manipulating numeric values in Java, covering integer types, floating-point numbers, type casting, and numeric wrapper classes.

Explore comprehensive Java numeric type methods, learn practical techniques for handling numeric data, and enhance your programming skills with efficient numeric operations in Java.

We looked at the basics of numeric types in the chapter Java - Command Line Programs, but there is more to say. The simplest format records a number with no fractional part, i.e. it stores integers. When you store an integer you can opt to use one byte, two, four or eight bytes.

To deal with numerical information, Java uses six predefined data types, called primitive numerical data types. These are int, long, short, byte, float, and double, and they allow us to represent integer and real numbers.