Java Data Types

Java is statically typed programming language which means variable types are known at the compile time.

Java Data Type Categories:

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.

Non-Primitive Data Types (Object Types):

These are reference types that store memory addresses of objects. Examples of Non-primitive data types are String, Array, Class, Interface and Object.

Type of Primitive Data Type

• byte: A very small integer, using 1 byte of memory.
• short: A small integer, using 2 bytes of memory.
• int: The standard integer type, typically using 4 bytes.
• long: A large integer type, using 8 bytes of memory for very large numbers
• float: Stores single-precision floating-point numbers, using 4 bytes.
• double: Stores double-precision, larger floating-point numbers with greater precision, using 8 bytes.
• char: Represents a single character (like 'a' or '5') and stores it as a 16-bit Unicode character in languages like Java.
• boolean: Represents a logical value, which can only be true or false

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