Primitive Data Types & Ranges [Lecture 2‑1] - Java Programming in 2025

In Lecture 2 – Part 1, we'll explore Java’s fundamental primitive data types from a theoretical perspective. Topics covered include:

Overview of the eight primitive types: byte, short, int, long, float, double, char, and boolean

Memory size and range for each type (e.g., byte: 1 byte, –128 to 127; char: 2 bytes, Unicode 0 to 65,535; float: 4 bytes; double: 8 bytes)

Default values assigned to class-level variables (e.g., 0 for numeric types, '\u0000' for char, false for boolean)

Key differences between integer types (byte, short, int, long), floating-point types (float, double), char, and boolean

Note: This video is theory-only; coding demos will be in Lecture 2 – Part 2.