1. Strong References (Objects)
Strong references provide direct access to the target object.
Will not be recycled.
Two, soft reference (SoftReference class)
When GC reclaims based on JVM memory, JVM reclaims when it finds it is out of memory
Conditions for freeing up space: JVM found insufficient m ...
Posted by alireza on Sun, 19 Jul 2020 08:34:35 -0700
1> Business logic for paging implementation
1->N data are displayed on each page. For the total number of data records M, the number of pages M%N==0?M/N:M/N+1;
2->Page Rendering Paging html Part
3>Switch pages, input parameters, background processing, and retrieve new eligible data
4>Paging method, js paging, and ...
Posted by irishred8575 on Sun, 19 Jul 2020 07:40:52 -0700
In practical development, we may encounter this situation: the picture needs to be rotated at an angle.For this purpose, we may use the transform ation of the UIView to rotate, but doing so only rotates the view that hosts the imageView at an angle, and the imageView does not rotate.All this is not good.
If you need to rotate the imageView at a ...
Posted by postmanager on Sat, 04 Jul 2020 07:32:03 -0700
This article is about GitHub https://github.com/Jack-Cherish/PythonPark Has included, there are technical dry goods articles, collated learning materials, interview experience sharing of first-line large factories, etc., welcome to Star and improve.
1, Waste classification
Do you remember the gar ...
Posted by Michael 01 on Mon, 29 Jun 2020 19:46:17 -0700
Global error handling server
Microsoft has implemented it Interceptors They are similar to Filter or Middlewares stay ASP.NET MVC core or web API, they can be used for global exception handling, logging, validation, etc. This is the server-side Interceptor's own implementation. Continuation is a Task that must wait. Then, if any exception is ...
Posted by ahundiak on Mon, 29 Jun 2020 17:54:30 -0700
This article has been included GitHub There are also Internet factory interview questions, interview strategies, efficient learning materials and so on
Docker is cool to use, especially when used in DevOps practice.However, when you pull a mirror at home or locally, you often encounter constipation - either slowly or intermittentl ...
Posted by oneday on Mon, 29 Jun 2020 16:19:02 -0700
Since the Extensions component library was released, Data Grid has become the most used and consulted component. At the beginning, the design of Data Grid was very simple. After some refactoring, the quality of components has been improved. Extensions component library: https://github.com/ng-matero/extensions Data Grid example: https://ng- ...
The core of this course is the concept of the network - the network is a mode of interrelationship between things. For example, the social network we are in reflects the social connection between friends. wait.
1.1 basic problems of network
Let's start with the network structure in sev ...
Posted by Loldongs on Sun, 28 Jun 2020 19:16:28 -0700
The first way
The second way
Distributed high availability
Realize the change from ordinary website to short website
reference resources:Design short URL system
How are short links designed? Get ...
Posted by smarlowe on Sat, 27 Jun 2020 21:53:43 -0700
As mentioned in the previous article, Python is simple and efficient because it has rich functions that can be used immediately. Recently, I read some technical articles of Github and found some interesting and practical Python libraries. It's a feeling that I'm too late to meet each other. Today, I wil ...
Posted by harvey on Sat, 27 Jun 2020 21:09:40 -0700