map set is the set of key value
The difference between HashMap and HashTable
HashMap is thread unsafe. HashTable is read and write with synchronized lock. It is thread safe and inefficient. Hashtab cannot store null key and value. HashMap can store null key and value in the first position of ...
Posted on Wed, 24 Jun 2020 22:22:38 -0400 by thomasadam83
Address of the previous chapter: UnityStandardAsset project, source code analysis_ 1_ Racing game [player control]_ input system
In the previous chapter, we learned the general process of vehicle control, and analyzed the input system, that is, those classes were called during the process from the play ...
Posted on Wed, 24 Jun 2020 02:35:42 -0400 by noirsith
This article comes from the author's contribution, the original author: God loves apples
At present, shell house hunting is my employer in Mordor. I usually focus on some java related technologies. I hope you can find something useful in this article. Personal level is limited. If there is any error in the article, please point it out and commu ...
Posted on Wed, 24 Jun 2020 01:01:04 -0400 by storyboo
Front End Learning Records 3-HTML
Unordered list ul-li
Differences between Tables and Unordered Tables
Ordered List ol-li
Custom List dl-dt-dd
Form label label
Do not use for and id methods in label tags
form Form Field (Write the necessa ...
Posted on Tue, 23 Jun 2020 20:49:52 -0400 by Leppy
What I bring you today is the basic knowledge of Java, including the basic syntax of Java, such as Java, variables, constants, data types, operators, various selection structures, loop structures, arrays, etc!!! The content and steps are super detailed, with source code of various cases (you can directly use O(∩)_ ∩)O~)!!! After readin ...
By designing a program of the book management system, we can make full use of the main knowledge points of the course, consolidate the understanding of modular program design and file operation, and improve the software programming ability.
2. Points of knowledge involved
Loops, branching sta ...
Posted on Mon, 22 Jun 2020 21:15:22 -0400 by theblacksheep
Volatile is a lightweight synchronization mechanism provided by java virtual machine. It has three major features: ensuring visibility, not atomicity, and prohibiting instruction rearrangement. Before you want to understand volatile, you must first understand the running principle of J ...
Posted on Sun, 21 Jun 2020 06:17:13 -0400 by nealios