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Some words cannot be used as object or variable names in a Java program. These words are known as reservedwords -- keywords that are already used by the syntax of the Java programming language.

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Java reserved words are keywords that are reserved by Java functions or other uses that cannot be used as identifiers (e.g., variable names, function names, class names). If a reserved word was used as a variable you would get an error or unexpected result. 

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Java reserved words are keywords that are reserved byJava.

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Some words cannot be used as object or variable names in a Java program. These words are known as reserved words functions or other uses that cannot be used as identifiers 

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Some words cannot be used as object or variable names in a Java program. These words are known as reserved words -- keywords that are already used by the syntax of the Java programming language.

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Java reserved words are keywords that are reserved by Java functions or other uses that cannot be used as identifiers (e.g., variable names, function names, class names). If a reserved word was used as a variable you would get an error or unexpected result. The list of reserved words in Java is provided below.

List of Java reserved words

abstract assert boolean break byte case catch char class const default

do double else enum extends false final finally float for goto

if implements import instanceof int interface long native new null package

private protected public return short static strictfp super switch synchronized

this throw throws transient true try void volatile while continue

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Every programming languages have keywords. The keywords are the words which are used for special purposes. Similarly java language also have different keywords they are 

1. public , private , protected - Access Specifier.

2. static , synchronized , abstract , native , volatile - Access Modifier

3. byte , short , int , long , char , float , double , boolean - Data Type.

4. class , interface - User Defined Data Type

5. If , else , switch , break , continue - Conditional Construct

6. for , while , do  - Control Structure

Like the above there are various keywords are there which are used for some purposes.

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Reserverd words also called key words are purely used for some specific meaning in the programming context which the Java compiler interprets  it as a 'keyword' and acts accordingly.

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Every programming language is built up having its own syntax using certain rules. For example - class to create classes int, char, float to declare variable public, private, protected to specify the access level and similarly many more words are reserved by a language for building up its own syntax. These are also called as keywords. Apart from this Java also contains revered literals. They are true and false. Being the boolean value, and java reserving it as literal, you cannot declare a variable with name "true" or "false". The word "class" & "Class" both are reserved by Java. The earlier one to declare a class while the other one is itself a class.In a programming language, few words are specified for a specific purpose that is restricted to be used as a parameter name, method name, class name etc.These words are basically known as 'KEYWORDS'. IF, ELSE, CONTINUE, BREAK, SWITCH are few examples of Reserved Words.

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In programming language few words are specified for specific purpose that are restricted to be used as a parameter name, method name, class name etc.These words are basically known as 'KEYWORDS'. IF, ELSE, CONTINUE, BREAK, SWITCH are few examples of Reserved Words.

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