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Wikipedia
en.wikipedia.org › wiki › List_of_Java_keywords
List of Java keywords - Wikipedia
October 20, 2025 - In the Java programming language, a keyword is any one of 68 reserved words that have a predefined meaning in the language. Because of this, programmers cannot use keywords in some contexts, such as names for variables, methods, classes, or ...
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Igmguru
igmguru.com › blog › java-keywords
Java Keywords – 68 Java Keywords Explained
3 days ago - There are a total of 68 keywords in Java, as per the last update. You must know each of them to build a robust application. The table given below provides a comprehensive list of these keywords along with their usages.
People also ask

Why are keywords necessary in Java?
They define the syntax and structure of the language and guide how code is compiled and executed.
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wscubetech.com
wscubetech.com › resources › java › keywords
Java Keywords: Full List With Examples (2025)
Is main a keyword in Java?
No, main is not a keyword; it's a method name used as an entry point.
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wscubetech.com
wscubetech.com › resources › java › keywords
Java Keywords: Full List With Examples (2025)
Are Java keywords case-sensitive?
Yes. For example, Public and public are not the same—only public is valid.
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wscubetech.com
wscubetech.com › resources › java › keywords
Java Keywords: Full List With Examples (2025)
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Oracle
docs.oracle.com › javase › tutorial › java › nutsandbolts › _keywords.html
Java Language Keywords (The Java™ Tutorials > Learning the Java Language > Language Basics)
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, and removed or deprecated options for all JDK releases. Here is a list of keywords in the Java programming language.
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GeeksforGeeks
geeksforgeeks.org › java › java-keywords
Java Keywords - GeeksforGeeks
August 27, 2018 - As of Java 21, there are 53 keywords, categorized below by their usage and purpose. Used to define variable types and specify the kind of data they can hold. Used to control the execution flow of a program, including loops, branching, and jumps.
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Unstop
unstop.com › home › blog › java keywords explained | list of 54 keywords +code examples
Java Keywords Explained | List Of 54 Keywords +Code Examples // Unstop
December 12, 2024 - Wondering how many keywords are there in Java? The table below provides a complete list of keywords in Java language, along with their descriptions. Java keywords are reserved words that form the foundation of the language. They carry predefined meanings and cannot be used for variable names or identifiers. In this section, we will discuss the usage of these keywords with examples...
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W3Schools
w3schools.com › java › java_ref_keywords.asp
Java Keywords
Arrays Loop Through an Array Real-Life Examples Multidimensional Arrays ... Java OOP Java Classes/Objects Java Class Attributes Java Class Methods Java Constructors Java this Keyword Java Modifiers · Access Modifiers Non-Access Modifiers Java Encapsulation Java Packages / API Java Inheritance Java Polymorphism Java super Keyword Java Inner Classes Java Abstraction Java Interface Java Anonymous Java Enum
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DataFlair
data-flair.training › blogs › java-keywords
Java Keywords - List of 51 Keywords with Examples - DataFlair
May 12, 2024 - Each keyword has its own individual function and performs a specific task assigned to it. In Java, we have 50 such reserved words, out of which 48 are in use and 2 are reserved but not in use.
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WsCube Tech
wscubetech.com › resources › java › keywords
Java Keywords: Full List With Examples (2025)
September 2, 2025 - Learn what keywords are in Java, explore the complete list of Java keywords, and discover best practices for using them with examples. Read now!
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Javatpoint
javatpoint.com › java-keywords
Java Keywords - Javatpoint
Java program to find the smallest element in a tree · Java program to find the sum of all the nodes of a binary tree · Java program to find the total number of possible Binary Search Trees with N keys
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Quora
quora.com › How-many-keywords-are-in-java
How many keywords are in java? - Quora
Answer (1 of 5): Around 50 abstract boolean break byte case catch char class const continue default do double else extends final finally float for goto if implements import instanceof int interface long native new package private protected public ...
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University of North Carolina
cs.unc.edu › ~weiss › COMP14 › 18-JavaKeyWords.html
Java Keywords or Reserved Words (52)for jdk1.4
Keywords for class functions are: class extends implements import instanceof new package return interface this throws void super · Keywords for assigned values are: true false null ·
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CodeJava
codejava.net › java-core › the-java-language › java-keywords
Summary of all Java keywords with code examples
And senior Java programmers will also find this article helpful in terms of reviewing all Java keywords updated to the most recent release of Java.You know, the Java programming language has over 50 reserved keywords which have special meaning for the compiler and cannot be used as variable names.
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Scribd
scribd.com › document › 647680128 › Keywords-in-Java
Keywords in Java | PDF | Class (Computer Programming) | Method (Computer Programming)
It defines what keywords are in Java and notes that there are 51 keywords, though 2 are unused. It then provides a list of the 49 keywords and provides a brief 1-2 sentence description of what each keyword is used for in Java programs.
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Software Testing Help
softwaretestinghelp.com › home › java › important java keywords list – reserved words in java
Important Java Keywords List - Reserved Words In Java
April 1, 2025 - In this tutorial, we will explore the Important Java Keywords List and learn about these Reserved Words, their Meaning along with Programming Examples.
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Java Concept Of The Day
javaconceptoftheday.com › home › java keywords cheat sheet
Java Keywords Cheat Sheet
September 8, 2022 - Java keywords are the reserved words which have predefined meaning in the language and hence can’t be used as identifiers. There are 67 Java keywords as of now. In this post, I have created a Java keywords cheat sheet.
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DataCamp
datacamp.com › doc › java › category › keywords
Java Keywords
In Java, keywords are reserved words that have a predefined meaning in the language. They form the foundation of Java's syntax and cannot be used as identifiers, such as variable names, method names, or class names.
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Oracle
docs.oracle.com › cd › E13226_01 › workshop › docs81 › pdf › files › workshop › JavaKeywordReference.pdf pdf
Java Language Keywords
The import keyword makes one class or all classes in a package visible in the current Java source file. Imported classes can be referened without the use of fully−qualified class names. ... The instanceof keyword is used to determine the class of an object. ... In the example above, if node is an instance of the TreeNode class or is an instance of a subclass of
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Croma Campus
cromacampus.com › blogs › list-of-java-keywords
List of Java Keywords: A Comprehensive Guide
You will be better equipped to grasp the role of keywords and their practical applications in Java development, empowering you to excel in both coding challenges and real-world software projects. Q1. Can I use Java keywords as variable names? A: No, Java keywords are reserved and cannot be used as variable, method, or class names. Q2. How many keywords are there in Java?
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Dummies
dummies.com › article › technology › programming-web-design › java › java-keywords-152272
Java Keywords | dummies
July 2, 2025 - It's your friendly neighborhood super hero! Spider-Man For Dummies is out now! Get your copy today. ... The Java programming language has 50 keywords. Each keyword has a specific meaning in the language.