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A reserved word is a word which, in some computer programming language, cannot be used as an identifier because it is already used for some grammatical purpose. For instance, in SQL, a user cannot be called 'group' because the word 'group' is used to indicate that an identifier refers to a group, not a user.

Sometimes the specification for a programming language will have reserved words that are intended for possible use in future versions. In Java, const and goto are reserved words — they have no meaning in Java but they also cannot be used as identifiers. By "reserving" the terms, they can be implemented in future versions of Java without "breaking" older Java source code.

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Topics: Reserved Word, Reserved Political Positions, Reserved Occupation...

Reserved wordA reserved word is a word which, in some computer programming language, cannot be used as an identifier because it is already used for some grammatical purpose. For instance, in SQL, a user cannot be called 'group' because the word 'group' is used to indi

Reserved political positionsSeveral politico-constitutional arrangements use reserved political positions especially when endeavoring to ensure the rights of minorities or preserving a political balance of power. These arrangements distort the democratic principle of one man one vot

Reserved occupationDuring the Second World War, most men of military age in Britain were conscripted into the armed forces. The exceptions were those in so-called reserved occupations jobs vital to the country which could not be abandoned. Examples include medical practitio

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