Three hundred rows per day (13 days: linked list)
Note: here are the synchronous notes and records of JAVA self-study and understanding. If you have any questions, please correct them
1, About linked list
The logical structure and physical structure of the linked list are not as close as the sequential list. The physical storage of the ...
Added by davidlenehan on Fri, 04 Mar 2022 16:56:57 +0200
leetcode - 237. Delete node in linked list
Please write a function to delete a specific node in the single linked list. When designing the function, you should pay attention to that you cannot access the head node of the linked list. You can only directly access the node to be deleted. The topic data ensures that the node to be deleted is ...
1, What is a dynamic agent
What is dynamic proxy and why it is used? Where is dynamic proxy used in normal programming? To understand what a dynamic agent is, you first need to know what an agent is. In fact, it is very simple. Just as literally, an agent: taking care of affairs instead of others.
In programming, agent is an implementation of ...
Added by stopblackholes on Fri, 04 Mar 2022 15:56:33 +0200
Spring MVC requests and responses
1, Response of spring MVC
The data response methods of spring MVC are as follows:
Return string directlyReturn via ModelAndView object Write back data
Return string directlyReturns an object or collection
1. Page Jump
1.1. Directly return string
In the code for getting ...
Added by robin339 on Fri, 04 Mar 2022 15:45:35 +0200
although Docker It has been very powerful, but there are still many inconveniences in practical use, such as cluster management, resource scheduling, file management and so on. In this era of containers, many solutions have emerged, such as Mesos, Swarm, Kubernetes and so on, among which Google is open source Kubernetes As a big brother.
Added by wellscam on Fri, 04 Mar 2022 14:45:58 +0200
Little buddy who wants to learn Python can pay attention to the official account of Xiaobian [Python journal]. There are many resources for whoring for nothing, ha. I will update the little knowledge of Python from time to time!! Small buddy who needs source code can reply to guess number in official account. Python source c ...
Added by xxxxxx on Fri, 04 Mar 2022 13:33:49 +0200
As we all know, singleton mode is often used in writing Java projects, such as creating object-oriented singleton mode, but this mode can be cracked by reflection mechanism. It is called violent reflection here, and multiple objects can be created by decompilation. Here we use the classic hungry man and lazy man for actual combat, And how to av ...
Added by explorer on Fri, 04 Mar 2022 07:48:32 +0200
(1) : method of comparing objects
There are a lot of concepts. Just have a look:
Object.ReferenceEquals(left, right) static method: it can be seen from the name that it is used to compare whether they are the same reference. We should never override this method. It always returns false for the comparison of value type ob ...
object-oriented It is a very common programming idea. Through a practical project, this paper will take you into object-oriented and experience the application of object-oriented in practical development, which brings us convenience.
The project of this paper comes from Dark horse programmer An example in a series of courses. Th ...
Added by stuartbates on Thu, 03 Mar 2022 20:06:59 +0200
As we all know, java 1.7 and the previous HashMap linked list insert elements using the header insertion method, which will lead to rings in the linked list in a multi-threaded environment, and will fall into an dead loop when being searched (CPU burst) 😭). Java 1.8 optimizes this problem and uses head interpolation. What's the difference bet ...
Added by futurshox on Thu, 03 Mar 2022 19:05:43 +0200