Language Fundamentals

📄️ Character Sets

Java supports a wide range of characters as per Unicode, and these can be grouped into common character sets or character classes:

Keywords are simple english words which are having predefined meaning in Java Programming Language.

Identifiers are the names those will be used to identify the programming elements like classes, methods, variables etc uniquely.

There are two types of data types.

Variable is the container which holds user data. Memory will be allocated for the variable while executing the program.

Constants is a special variable whose value can't be modified during the program execution.