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member > instance member > instance method > method that is declared in Object class > getClass |
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getClass | ||||
subject | fact |
getClass | has specification ![]() | ![]() |
has example //Returns the name of the class of the object called key String name = key.getClass().getName(); | ![]() | |
is a subtopic of Example Methods | ![]() | |
is an instance of final method | ![]() | |
is an instance of method that is declared in Object class | ![]() | |
returns a runtime representation of the class of the object | ![]() | |
final method | cannot be overridden by any method | ![]() |
has purpose to increase efficiency by eliminating dynamic method lookup ![]() | ![]() | |
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 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 | ![]() | |
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 | ![]() | |
should be as private as possible | ![]() | |
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 | ![]() | |
instance method | can operate on the current object's instance variables | ![]() |
can refer to the object itself using the 'this' keyword | ![]() | |
has access to every class variable of its class | ![]() | |
implements the behaviour of the objects in the class | ![]() | |
is part of a class | ![]() | |
may be declared public, protected or private ![]() | ![]() | |
should be placed in a class such that there is no needless duplication of it, and such that it is useful in all the subclasses of the class in which it is defined | ![]() | |
access unit | has access mode | ![]() |
syntactic unit | has syntax rule bold = mandatory | ![]() |