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Variables with fixed value

AcmemanAcmeman Posts: 1Member
Is there in Java an operator that allow to a variable only a fixed set of values. For example the variable char color have only these value: "red","yellow",.. "etc".

Comments

  • victoriousvictorious Posts: 1Member
    : Is there in Java an operator that allow to a variable only a fixed
    : set of values. For example the variable char color have only these
    : value: "red","yellow",.. "etc".
    :


    see http://mindprod.com/jgloss/immutable.html read about Collections.unmodifiableList. Hope it helps.
  • kvureshkumarkvureshkumar Posts: 24Member
    I guess you could use the enumerations in java or define a custom class having defined fields (in your case - "red", "yellow", ..."etc") and use this class to use any one field among them and you do not check them again.

    I do not know about any operator as such which would allow a variable only a fixed set of values. operators are logically used for mathematical/logical/assignment operations, etc.

    Regards,
    Uresh :-)

    : Is there in Java an operator that allow to a variable only a fixed
    : set of values. For example the variable char color have only these
    : value: "red","yellow",.. "etc".
    :
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