Explore the essentials of java data types Programmers create them and can be assigned with null Deeply understand the differences and uses of primitive vs
They are created by users and include types like string, class, object, interface, and array. They are strings, objects, arrays, etc Learn how each handles memory, value storage, and object references.
Understand java data types in depth—learn the memory size, range, default values, and use‑cases of all primitive types as well as strings, arrays, and classes.