What are the differences between the primitive type short and its object representation Short in Java?

In Java, short is a primitive data type that occupies 2 bytes and stores a numeric value from -32768 to 32767.

Short is an object wrapper class for the primitive type short. Main differences:

• Primitive vs Object: short is primitive, Short is an object.
• Usage: Short is used when an object is needed, for example, in collections (List<Short>), where primitives cannot be used.
• Autoboxing: Java automatically converts between short and Short (autoboxing and unboxing).
• Methods: Short provides methods, for example, for converting to string, comparison, etc., which primitives do not have.

Example:

short a = 10;
Short b = a; // autoboxing
short c = b; // unboxing

List<Short> list = new ArrayList<>();
list.add(a); // cannot add primitive directly, but autoboxing allows it

Thus, Short is needed for working with objects, and short for efficient storage of numbers.