8:07 pm - Thursday April 25, 2019

Identifiers in java with Example Program

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Identifiers

  •   Identifiers must start with a letter, a currency character ($), or a connecting
  •   Character such as the underscore ( _ ). Identifiers cannot start with a number!
  •  After the first character, identifiers can contain any combination of letters,
  •   Currency characters, connecting characters, or numbers.
  •   Identifiers in Java are case-sensitive
  •  You can’t use a Java keyword as an identifier
  •  there is no limit to the number of characters an identifier can contain.
  •  JavaBeans methods must be named using camelCase, and depending on the

 

method’s purpose, must start with set, get, is, add, or remove.

 

legal and illegal identifiers

 

Legal identifiers:

 

int _a;

int $c;

int ______2_w;

int _$;

 

The following are illegal (it’s your job to recognize why):

 

int :b;

int -d;

int e#;

int .f;

int 7g;

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Filed in: Z-A All Java Codes

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