Meituan side: what is the relationship between hashCode and the memory address of the object? I'm confused..
Source: juejin.cn/post/6971946031764209678
First look at the simplest print
System.out.println(new Object());
The fully qualified class name and a string of strings of this class will be output:
java.lang.Object@6659c656
@What is after the symbol? Is it hashcode or the memory address of the object? Or something else?
In fact, @ what follow ...
Posted by sac0o01 on Fri, 22 Oct 2021 17:04:34 -0700
[high frequency written interview in front field] question 10: JavaScript related
catalogue
1. Known array var stringArray = ["This", "is", "Baidu", "Campus"]
2. The string foo = "get element by ID" is known. Write function to convert it into hump representation
3. Known array var numberArray = [3,6,2,4,1,5]; Apply array API for operation
4. Output today's date in YYYY-MM ...
Posted by fuzzy1 on Fri, 22 Oct 2021 16:55:53 -0700
LeetCode 18. Sum of four numbers
LeetCode 18. Sum of four numbers
Title:
Give you an array of n integers, nums, and a target value, target. Please find and return the quads [nums[a], nums[b], nums[c], nums[d]]:
0 <= a, b, c, d < na. b, c and d are different from each othernums[a] + nums[b] + nums[c] + nums[d] == target
You can return answers in any order.
Example:
...
Posted by thetick on Fri, 22 Oct 2021 13:08:45 -0700
Jump to the item page in RecyclerView
1, Function realization requirements
Implementation: in the waterfall flow page layout implemented by RecyclerView, click any commodity to jump to its commodity details page.
2, Concrete implementation
The file directory is as follows:
2.1 detail page design after jump
Now only jump implementation is considered. Taking the first prod ...
Posted by leszczu on Fri, 22 Oct 2021 08:24:50 -0700
torch.nn neural network -- use of pooling layer + nonlinear activation function (ReLU and sigmoid) + Sequential() function
nn.Module neural network
4. Pool layer
Pooling layer: the pooling function uses the overall statistical characteristics of adjacent outputs at a location to replace the network output at that location. The essence is downsampling to reduce the amount of network parameters
Still the old rule, import module and dataset, CIFAR10,batchsize=64:
...
Posted by Zoofu on Fri, 22 Oct 2021 08:17:06 -0700
Servlet Part 3 [introduction to request and response, common applications of response]
response and request objects
Tomcat receives the http request from the client and creates a request object representing the request and a response object representing the response for each request
Since the request object represents the http request, we can get the data submitted by the browser and find the request object. The response o ...
Posted by alco19357 on Fri, 22 Oct 2021 08:16:34 -0700
Paddegan takes you to immersive space travel (οΎο½ͺο½ͺοΎ): achieve high-quality style migration
[PaddleGAN Immersive space travel π¨βπ] Teach you to quickly realize the transfer of high-quality artistic style
Can roam the universe without a spaceship?! π¨βππ©βπ
You're not dreaming! π
AI art style migration makes your dream come true!!! π°
Don't feel out of reach today PaddleGAN Just use the power of AI to lead you on th ...
Posted by atdawgie on Fri, 22 Oct 2021 08:04:50 -0700
Python data structure 02 - sequential list, linked list
Sequence table
Storage method of elements in the sequence table:
The complete information of the sequence table consists of two parts: 1. Set of elements in the table 2. Information on the overall situation of the table
There are two ways to implement the sequence table:
Figure a shows an integrated structure: table information and el ...
Posted by ignorant on Fri, 22 Oct 2021 08:00:19 -0700
Java notes - multithreading
Process and thread
Process: The running program is an independent unit for the system to allocate and call resources. Each process has its own memory space and system resourcesThread: It is a single sequential control flow in a process, or a separate execution path If a process has only one execution path, it is called a single threaded progra ...
Posted by hagman on Fri, 22 Oct 2021 07:43:32 -0700
Submit the sql script file with Flink sql client
Title: submit sql script file with flynk sql client Date: twenty 21-10-22 22:11:34 Tag: [Flink, SQL client] Category: flink
We know that sql-client.sh can provide us with an SQL interactive interface, so that we can see the execution results or interactive query table results without executing an SQL.
In fact, we can also submit sql scripts t ...
Posted by Drannon on Fri, 22 Oct 2021 07:39:30 -0700