Java Data Types

Data Types In Java  

In Java, data types are used to classify the types of data that variables can hold. Java has two categories of data types: Primitive data types and Non-primitive data types

Primitive Data Types:

Primitive data types represent single values and are not objects. They have fixed sizes and are directly stored in memory. There are eight primitive data types in Java

• boolean data type
• byte data type
• char data type
• short data type
• int data type
• long data type
• float data type
• double data type

• byte: 8-bit signed integer (from -128 to 127)

• short: 16-bit signed integer (from -32,768 to 32,767)

• int: 32-bit signed integer (from -2,147,483,648 to 2,147,483,647)

• long: 64-bit signed integer (from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807)

• float: 32-bit floating-point number (single precision)

• double: 64-bit floating-point number (double precision)

• boolean: Represents true or false

• char: Represents a single 16-bit Unicode character

Non-primitive Data Types:

These data types are non-primitive and are derived from the primitive types. They refer to objects.

• String: Represents a sequence of characters.
  
• Arrays: A collection of similar types of elements.
• Classes: User-defined types.

Here's an example that demonstrates the use of all primitive data types in Java :