Naming Convention In Java

Naming Convention In Java-camel case example

Naming Conventions are rules to be followed by giving a name to the identifier.Identifiers are program elements(such as class,object,variable,method so on ).For building software you should follow this rule to make your code look good, more efficient and more readble.Java has certain rules for naming identifier. This are given below

• Digit, letters, underscore or currency symbols(£, €, $) are allowed

            The first letter of any identifier cannot be a digit

• An identifier name must not be a reserved words or keywords
• Java follows camelCase rule

what is camelcase rule?

CamelCase is a way to separate the words in a phrase by making the first letter of each word capitalized and not using spaces (ex :- MyFirstJavaClass)

Class name —> should begin with a capital letter(In a single word)

If it is multiple words, the first letter of every word begins with a capital letter.

Ex :- class Student --->(single word)

class StudentName --->(multiple word)

Method name —> first letter of first word lower case letter(single word)

If it is multiple words, the first letter of first word is lowercase and first letter of every word should be capital letter

Ex :-  void read() --->(single word)

void readName() --->(multiple word)

objective type Q&A

1. number ,Number ,sum _$, averages are legal identifier
2. 44sum ,all/clear ,end-to-end are illegal identifier

types of variable in java

 

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