Identifiers in JAVA

Identifiers:-

A name in the program is an identifier it may be class name or method name, variable name or label name

Ex:-

Rules for defining Identifiers :-

  1) A java identifier is a sequence of characters, where each character may be a letter from a-z or A-Z or digital from 0-9  or 
 currency symbol $ or connecting punctuation -, if we are using any other symbol we will get compile time error "illegal character"

 2) Identifier should not be starts with didgit

 3) There is no length limit for java identifiers but it is not recommended to take more than 15 length

4) Java identifiers are case sensitive


Ex:-             
              class FundaDemo 
             {

              public static void main(String args[])
              {

             int String=10;
             System.out.println(String);
         }

}


O/P:- 10