Java has a set of keywords that are reserved words that cannot be used as variables, methods, classes, or any other identifiers: A non-access modifier. Used for classes and methods: An abstract class …

See Java Language Changes for a summary of updated language features in Java SE 9 and subsequent releases. See JDK Release Notes for information about new features, enhancements, …

In the Java programming language, a keyword is any one of 68 reserved words [1] that have a predefined meaning in the language. Because of this, programmers cannot use keywords in some …

Dec 4, 2025 · In Java, keywords are the reserved words that have some predefined meanings and are used by the Java compiler for some internal process or represent some predefined actions. These …

Nov 26, 2025 · Learn what a keyword in Java is, why keywords are important, and how they are used as reserved words that form the core of Java programming syntax.

Feb 9, 2026 · Keywords in Java have a specific meaning to the Java compiler. They are fundamental to the language's syntax and structure and can not be used as other identifiers in Java like variable …

Learn what keywords are in Java, explore the complete list of Java keywords, and discover best practices for using them with examples. Read now!

Java Keywords Reference is a comprehensive guide to all reserved words in the Java programming language. These keywords are integral to defining the syntax and structure of Java programs and …

Sep 7, 2025 · In Java, keywords are reserved words that have a predefined meaning in the language. These words form the core building blocks of Java’s syntax and cannot be used as identifiers (such …

You cannot use keywords like int, for, class, etc as variable name (or identifiers) as they are part of the Java programming language syntax. Here's the complete list of all keywords in Java programming.