Primitive Data Types

Lesson 1 of 16 in Coddy's Strings and Arrays in Java course.

Before we dive into the course, let's clarify data types in Java.

Data types are divided into two groups:

Primitive data type specifies the size and type of variable values, and it has no additional methods.

The primitive data types in Java are byte, short, int, long, float, double, boolean and char.

Data Type	Size	Description
`byte`	1 byte	Whole numbers from -128 to 127
`short`	2 bytes	Whole numbers from -32,768 to 32,767
`int`	4 bytes	Whole numbers from -2,147,483,648 to 2,147,483,647
`long`	8 bytes	Whole numbers from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807
`float`	4 bytes	Fractional numbers up to 6 to 7 decimal digits
`double`	8 bytes	Fractional numbers up to 15 decimal digits
`boolean`	1 bit	true or false values
`char`	2 bytes	Single character/letter