GO Language interface Text
1.1 interface is concise Interface (interface) is one of the most important features of golang. Interface types can define a set of methods, but these do not require reality Now.And interface cannot contain any variables. ◼ interface is a collection of methods ◼ interface is a type and is a poiUTF-8...
Posted by VirusDoctor on Sat, 05 Jun 2021 02:14:09 +0930
Polypeptides and Extended Modifiers
@A virtuous person eats potatoes 1. Polymorphism Polymorphisms occur on the basis of inheritance and override. 1.1: Definition of polymorphism: Polymorphism in life: Different forms or operations of the same thing due to different external conditions are called polymorphism.Program polymorphismUTF-8...
Posted by zeberdeee on Sun, 06 Jun 2021 04:15:28 +0930
Implementation of C + + callback function
To achieve high-performance programming: the general approach is thread pool + task pool. Here is a brief introduction to what callbacks should do. 1. Function pointer #include "mainwindow.h" #include #include //The first step is to declare the function pointer. The follUTF-8...
Posted by danielhalawi on Thu, 10 Jun 2021 04:05:38 +0930
C + + object oriented review
Due to the recent use of java more, so a simple system review of C + + object-oriented knowledge 1, Constructors and destructors The two are put together because they have something in common: ① In the class, it is the same as the class name (ps: before the destructor name, there is a ~, which UTF-8...
Posted by adamgram on Mon, 14 Jun 2021 04:00:48 +0930
Notes on learning python: object oriented, blooming in spring
1, Overview of object oriented Object oriented is a systematic way of thinking according to people's understanding of the objective world, which decomposes the problem affairs into various objects. The purpose of establishing objects is not to complete a step, but to describe the behavior of sUTF-8...
Posted by hcspider on Fri, 25 Jun 2021 06:39:22 +0930
C + + classes and objects: Inheritance and derivation
Inheritance and Derive There are three ways of inheritance In fact, there are three ways: public inheritance, private inheritance and protected inheritance. The main difference between different inheritance methods lies in the access permission changes of members with different access rights inUTF-8...
Posted by Popcorn on Sat, 26 Jun 2021 06:09:59 +0930
Java Design Mode - Strategy
Duck problem Requirements: Write a duck project to display behavioral information (flight, barking) of all kinds of ducks (wild duck, Beijing duck, toy duck) Traditional Solution Write duck Abstract classes, define various methods of behavior information, the child classes are all kinds of duckUTF-8...
Posted by sathyan on Thu, 01 Jul 2021 01:55:04 +0930
Read and Write Files for Beginners with Zero Foundation
Encapsulation, Inheritance and Polymorphism Object-oriented programming has three important features: encapsulation, inheritance, and polymorphism. encapsulation Encapsulation refers to placing data and the implementation code of specific operations inside an object so that the details of the iUTF-8...
Posted by Cailean on Tue, 06 Jul 2021 03:10:44 +0930
C++ Programming Basic Questions Training
1. Write a c++ style program that calculates the first 20 items of the Fibonacci number column by dynamically allocating space and stores them in dynamically allocated space 1. The code is as follows #include using namespace std; int main() { int *a = new int[25]; a[0] = 0; a[1] = 1;UTF-8...
Posted by didijeeeke on Sat, 10 Jul 2021 05:00:18 +0930
On polymorphism, inheritance, abstract class and interface of Java object-oriented programming
1. Package A package is a way to organize classes.The main purpose of using packages is to ensure the uniqueness of classes. 1.1 import classes in package java provides many ready-made classes for us to use public class Test { public static void main(String[] args) { java.util.Date date = new UTF-8...
Posted by discobean on Sun, 25 Jul 2021 06:20:09 +0930