Identifiers and keywords
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Identifiers are names given by programmers to variables and other program elements, and can include letters, digits, and underscores in any case. Keywords are reserved words known by the compiler to have special meanings, are in lowercase only, and cannot include special characters except underscores. The main differences are that identifiers can be named by programmers while keywords have predefined meanings to the compiler.
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Identifiers and keywords
- 1. DIFFERENCE BETWEEN IDENTIFIERS AND KEYWO IDENTIFIERS KEYWORDS dentifiers are the name defined by the programmer to he basic elements of a program. Keywords are the reserved words wh meaning is known by the compiler. t is used to identify the name of variable. It is used to specify the type of entity t can consists of letter , digits , and underscore . It contains only letters. t can use bot uppercase and lowercase letter. It uses only lowercase letters. No special character can be used except the underscore. It can not contain any special charac xample are test , result ,. sum , power. Examples are ‘ for ’ , ‘ if ’ , ‘ else ’ , ‘ break ’