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Java - Language Fundamentals

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1. Identifiers

2. Reserved Words

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Java - Language Fundamentals_1 - Indentifiers

Java - Identifiers Types of Language Fundamentals Identifiers Reserved Words Data Types Literals Arrays Types of Variables var-arg Methods main() method Command Line Arguments Java Coding Standards What is identifier ? - The name given to class, method, variable and label in java is nothing but the identifier. Let’s take a below sample example – Class Test { Public static void main (String args[]) { int num = 10; } } Let’s review - What are the identifiers in above code snippet? Class Test { Public static void main ( String args []) { int num = 10; } } The Test - Class name, main - method name, String - predefined class name, args - variable name & num - variable name are identifiers in above code. Naming Conventions/Rules for Identifiers

Java - Language Fundamentals_2 - Reserved Words

What are reserved ? Some words are reserved to represent some meaningful functionality. - cat - fruit - cow - car - sleep Similarly in java, If else for How many words are reserved ? In java some words are reserved to represent either meaning or functionality, those words are called as reserved words. There are 53 reserved words in java.

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Java - Language Fundamentals

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