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Java class method | ||||
subject | fact |
Java class method | does not have 'this' value when it is executing | |
is a subtopic of The Basics of Java | ||
is called by using the name of the class, followed by a dot, followed by the name of the method (the name of the class can be omitted when calling a class method in the current class) | ||
is marked as static | ||
is a kind of class method | ||
is a kind of Java method | ||
class method | has purpose implementing functions such as initializing a class, or operating on the complete set of instances of a class | |
should not be overused | ||
Java method | can be accessed by other methods and variables in any class in the same package by default | |
overrides a method in a superclass with the same name | ||
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 | ||
procedural abstraction | has advantage when using a certain procedure, a programmer does not need to worry about all the details of how it performs its computations; he or she only needs to know how to call it and what it computes | |
hides the details of procedures | ||
procedure | provides procedural abstraction | |
module | has high cohesion if related aspects of a system are kept together in this module, and unrelated aspects are kept out | |
is implemented | ||
lacks side effects if it does not modify any data, and does not leave behind any information, other than its result, that would have an effect on other computations | ||
component | may perform a special-purpose function such as the user interface for a particular system |
Kinds of Java class method :
Up: class method, Java method