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member > method > finalize method |
finalize method | ||||
subject | fact |
finalize method | cleans up an object before the object is garbage collected | |
has definition A method that is invoked before an object is discarded by the garbage collector, allowing it to clean up its state | ||
has purpose to clean up an object before the object is garbage collected | ||
is a subtopic of Garbage Collection | ||
is a kind of method | ||
see also finalize | ||
method |
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belongs to a class | ||
can access all instance variables of all objects of its class | ||
can be inherited by subclasses of its class | ||
can be accessed by other methods and variables in any class in the same package by default | ||
can have an array as a parameter - see method parameter | ||
can use the super method to invoke a method declared in the superclass | ||
cannot be passed as an argument to a method or constructor | ||
creates an object by instantiating a class | ||
does not return a value if it has a void return type | ||
has part method definition | ||
has part method signature | ||
has part a block of implementation code | ||
implements | ||
is equivalent to the terms "function member" or "member function" which are used in C++ | ||
is equivalent to the terms "routine", "function" or "method" which are used in non object-oriented programming languages | ||
is part of a class or an object | ||
may contain empty return statement if it has a void return type | ||
may have access modifier | ||
must contain return statement unless it has a void return type | ||
must define its parameter list | ||
must define its return type | ||
overrides a method in a superclass with the same name | ||
returns a value that is of the return type of the method or a subtype of that type | ||
should be as private as possible | ||
should have a comment at its head if the method is non-obvious | ||
should not be public except for those that will definitely need to be called from outside the package | ||
should return to its caller from only one place which should be the last statement | ||
usually hides instance variables, class variables from other objects | ||
access unit | has access mode | |
syntactic unit | has syntax rule bold = mandatory |
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