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syntactic unit > access unit > variable > local variable |
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local variable | ||||
subject | fact |
local variable | can be declared anywhere in a method | ![]() |
can be initialized by an assignment statement | ![]() | |
has definition A data item known within a block but inaccessible to code outside the block | ![]() | |
has definition A variable that is declared in a method | ![]() | |
has a lifetime which is the time of one execution of its block | ![]() | |
is a subtopic of Variables and Data Types | ![]() | |
is a kind of variable | ![]() | |
variable | can be accessed by other variables and methods in any class in the same package by default ![]() | ![]() |
can contain different classes of objects depending on the type of the variable | ![]() | |
can contain only values that are of the same type as the variable or a subtype of the variable's type | ![]() | |
can refer to a particular object, several different objects during the execution of a program, or no object at all ![]() | ![]() | |
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 | ![]() | |
access unit | has access mode | ![]() |
syntactic unit | has syntax rule bold = mandatory | ![]() |
Kinds of local variable :
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