object oriented programming interview questions

PYTHON_WAY.DAY71, moduleConfigparser,xml,shutil,subprocess2. Object-oriented (top)The creation of classes, the composition of classes, the selection of functional programming and object-oriented programming, the inheritance of cla

Do not say his concept, if you want to build a computer classroom, first to have a room, the room to have n computers, there are n tables, n chairs, white boards, projectors and so on, these are what, just now we said, this is the object, can see the entity, Can say this computer classroom unit is this one entity object, they together compose this computer classroom, then we are the procedure, this and

[. Net Object-Oriented Programming Basics] (17) arrays and sets,. net Object-Oriented Programming [. Net Object-Oriented

Java Learning (12), object-oriented programming (4) Inheritance, concepts and super keywords, object-oriented programming super Inheritance Concept: ① The idea behind inheritance is to build new classes based on existing classes;

Python learning diary-Object-Oriented Programming (1), python Object-Oriented Programming Python class and instance) Assume that a shoe has two attributes: size and color. Class can play a role in the template. Therefore, when cre

Class methods and class extensions in Ruby object-oriented programming, ruby Object-Oriented Programming Class Method The essence of a class method is a single-piece method that lives in a single-piece class of this class. Three m

, all non-static constructors are also referred to as instance constructors.　2. Static ClassWe often want the class to contain only static members, and cannot be used to instantiate objects such as the console. A simple way to do this is to use a static class instead of setting the class's constructor to private. A static class can contain only static members and does not require an instance constructor because, by definition, it cannot be instantiated at all. However, a static class can have a

"Simple factory and Singleton" in object-oriented programming mode, object-oriented programming Factory Simple Factory Pattern ): Defines a factory class. It can return instances of different classes according to different paramet

need to provide the code for the destructor, but instead the default destructor performs the operation automatically. However, if you need to do some important things before you delete an object instance, you should provide a specific destructor.For example, if a variable is out of range, the code cannot access it, but the variable still exists somewhere in the computer's memory. Only in. NET runtime to perform its garbage collection, the instance is

Introduction to javascript Object-Oriented Programming and Object-Oriented Programming The ECMA-262 defines an object as a collection of unordered properties that can contain basic valu

Java Learning (11), object-oriented programming (3) Encapsulation-package, java Object-Oriented Programming Significance of packaging: ① The standard Java library is composed of a series of packages, including java. lang, java. ut

Differences between php Object-Oriented Programming self and static, object-oriented programming self In php object-oriented

Python Object-Oriented Programming (3) and python Object-Oriented Programming Encapsulation 1. Why encapsulation? Encapsulation is to hide the specific implementation details of data attributes and methods and only provide one int

Brief explanation of the scope of Ruby Object-Oriented Programming and ruby Object-Oriented Programming Scope Ruby does not have nested scopes (internal scopes, which can be viewed as external scopes). Their scopes are completely