Traditional Culture Encyclopedia - Hotel accommodation - What does abstract log mean?
What does abstract log mean?
abstract, an English word, adjective, noun and verb, means "purely theoretical" when used as an adjective; Abstract; Abstract ",as a noun means" abstract; Abstract; An abstract concept; Abstract works of art ",when used as a verb, means" abstract; Extract; Abstraction; Quit; Transfer; Make you absent-minded. "
phrase collocation
abstract system[ self] abstract system; Abstract system; Translation
abstract thinking abstract thinking; Abstract thinking; Sexual thinking
abstract painting; Abstract painting; Abstract oil painting; Abstract painting hotel decoration painting
abstract good abstract product
English Abstract English abstract; English abstracts; English abstract; Chinese abstract
abstract space; Abstract space; Detailed
abstract science theory science
Abstract unit[ number] abstract unit
abstract invoice; Simplified invoice; Abstract invoice; Brief
extended data
abstract class
When a class is declared abstract, it is called an abstract class. The so-called abstract class is a class without instance objects.
abstract classes are defined in p>java for the same reason. Abstract class is a collection of public attributes of all its subclasses, so one of the advantages of abstract class is to make full use of public attributes to improve the efficiency of developing and maintaining programs.
abstract method
as a modifier, abstract declares an abstract class that has no concrete object and exists for the hierarchical relationship of organizational concepts; As a class method modifier, abstract declares an abstract method with only a method header, but no specific method body and operation implementation.
such as:
abstract boolean goVacation (int days);
It can be seen that the abstract method only has the declaration of the method header, and a semicolon is used instead of the definition of the method body; As for the concrete implementation of the method body, it is completed by different subclasses of the current class in their respective class definitions.
Baidu encyclopedia -abstract (English word)
Baidu encyclopedia -abstract (abstract modifier)
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