C + + learning notes (1)
Siddhartha Rao, 21st day learning C + + (8th Edition)
Auto auto inference type (new in C++11) //Initialization is required when using auto
auto largeNumber = 25000000000000; //The compiler determines the appropriate value according to the initial value, which should be long long here
auto iteration int ...
Posted by beginneratphp on Thu, 10 Mar 2022 17:09:08 +0100
1, Binding method
1. Object binding method
First, let's make it clear that all methods or functions in a class are bound to objects by default. Next, we will slowly analyze the application of binding methods through examples.
self.name = name
self.age = age
Posted by kgahn on Tue, 08 Mar 2022 21:14:23 +0100
Thread creation and startup
Inherit Java Lang.Thread class
Implement Runnable interface
Implement Callable interface
I don't know if you have ever thought about why so many people can play together at the same time when we play the glory of t ...
Posted by discorevilo on Tue, 08 Mar 2022 01:23:39 +0100
Yesterday, I happened to encounter a small problem with enumeration, and then found that I am not so familiar with it. Then in development, enumeration is used very much, so I have today's article.
What is enumeration
Enumeration in Java is a type, just as the name suggests: it is enumerated one by one. Therefore, it generally represe ...
Posted by ben2k8 on Mon, 07 Mar 2022 23:22:58 +0100
We know that in HashMap, the location of a key value pair stored in the internal data of HashMap is related to the hashCode value of K, which is also because the hash algorithm of HashMap is based on the hashCode value.
Three concepts should be distinguished here: hashCode value, hash value, hash method and array subscript
Posted by kidintraffic on Mon, 07 Mar 2022 22:59:18 +0100
1. Method definition and call
So what is the method? A method is essentially a block of codeSo what is the significance of the method? After defining a method, you can call it repeatedly in different positions, so you don't need to write the same piece of code repeatedly.
1. Method definition and calling syntax
Method definition syntax
Posted by Josh954r on Mon, 07 Mar 2022 21:49:56 +0100
3. Common sorting algorithms
learning objective: master common sorting algorithms.
introduction to algorithm:
Sort / / sort the elements in the containerrandom_shuffle / / shuffle and randomly adjust the order of elements within the specified rangeMerge / / merge container elements and store them ...
Posted by admin on Mon, 07 Mar 2022 18:24:47 +0100
1.print print information with color
You know the print function in Python. Generally, we will use it to print something as a simple debugging.
But you know, the font color printed by Print can be set.
A small example
print(esc('31;1;0') + 'Error:'+esc()+'important')
After running this code on the ...
Posted by GreenCore on Mon, 07 Mar 2022 15:51:02 +0100
preface❤️ How much talent a person has, how much humility will be engraved in his bones ❤️
(1) Registration event (binding event)
1.1 overview of registration events
one ️⃣ Adding an event to an element is called a registration event or a binding event. two ️⃣ There are two ways to register events: traditi ...
Posted by djwiltsh on Sun, 06 Mar 2022 21:50:52 +0100
Build basic script
When creating a shell script, you must specify the shell to be used in the first line of the file. Its format is:
#display user information from the system
echo "User info for userid: $USER"
echo UID: $UID
echo HOME: $HOME
The user variable can be any ...
Posted by Gafaddict on Sat, 05 Mar 2022 20:34:55 +0100