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syntactic unit > access unit > variable > variable declared as primitive data type |
variable declared as primitive data type | ||||
subject | fact |
variable declared as primitive data type | contains a value of the same type | |
does not contain object in the sense that its contents is not an instance of any class | ||
is a subtopic of Variables and Data Types | ||
is a kind of variable | ||
refers directly to its value | ||
variable | can be accessed by other variables and methods in any class in the same package by default | |
can have an interface as its type which means that, with the variable, you can invoke any operation supported by the interface | ||
can refer to a particular object, several different objects during the execution of a program, or no object at all | ||
has 1 value at any one time which is the that it refers to | ||
has 1 name | ||
has scope which is the block in which it is declared | ||
has type | ||
has lifetime which is the time its block is being executed | ||
has purpose to refer to an object or a class or a primitive datum | ||
has scope | ||
has part value | ||
is declared by giving the data type followed by the name of the variable | ||
is destroyed in the block where it is declared | ||
may have access modifier | ||
refers to a class or an object or a primitive datum | ||
should be as private as possible | ||
should have comment if it is non-obvious | ||
access unit | has access mode | |
syntactic unit | has syntax rule bold = mandatory |
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