Web Reference: Jan 14, 2026 · An identifier in Java is the name given to Variables, Classes, Methods, Packages, Interfaces, etc. These are the unique names used to identify programming elements. Identifiers can be short names (like x and y) or more descriptive names (age, sum, totalVolume). Note: It is recommended to use descriptive names in order to create understandable and maintainable code: Java Identifiers: A comprehensive guide to the use, examples, rules, and valid/invalid identifiers in Java. Master naming conventions in Java programming.
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