ATM system

Realization of ATM withdrawal system by simulating bank The system uses ((SQL Server)) database Function introduction: Account opening (fill in the account opening application form at the bank) Withdraw money Deposit money Check the balance Transfer accounts Design the corresponding database concept ...

Posted on Sun, 27 Oct 2019 00:18:07 -0400 by keyont

Java basic course -- Socket programming

Socket, also known as "socket", is used to describe the IP address and port. It can be used to realize the communication between different virtual machines or different computers. ——Baidu Encyclopedia Sockets allow applications to plug into the network and communicate with other applications plugged into the network. &mda ...

Posted on Sat, 26 Oct 2019 15:16:22 -0400 by JonnySnip3r

Talk about postCluster of nacos address

order This paper mainly studies the postCluster of nacos address AddressServerClusterController nacos-1.1.3/address/src/main/java/com/alibaba/nacos/address/controller/AddressServerClusterController.java @RestController @RequestMapping({AddressServerConstants.ADDRESS_SERVER_REQUEST_URL + "/nodes"}) public class AddressServerClusterController { ...

Posted on Sat, 26 Oct 2019 14:54:57 -0400 by smarty_pockets

A preliminary understanding of Lambda

Lambda function package, providing lambda interface public interface Function<T, R> { /** * Applies this function to the given argument. * * @param t the function argument * @return the function result */ R apply(T t); default <V> Function<V, R> compose(Function<? super V, ? extends T> before) { Obje ...

Posted on Sat, 26 Oct 2019 10:31:46 -0400 by Bill_Draving

Python's container related classes

Python's container related classes The four main data structures that most programming languages usually provide are list, set, dict and deque. Among them, the set set cannot remember the order of adding this element, and the elements in the set cannot be repeated; the list container can remember the ...

Posted on Sat, 26 Oct 2019 09:41:02 -0400 by jbille

Spring Boot 2.X: Global exception handling

Preface In Java Web system development, whether it is the Controller layer, Service layer or Dao layer, it is possible to throw exceptions. If you add the exception handling code of various try catch in each method, it will make the code very tedious. In Spring MVC, we can decouple all types of exception handling from each individual method, an ...

Posted on Sat, 26 Oct 2019 02:52:01 -0400 by rbragg

Error handling practice when Spring Boot provides RESTful interface

In the process of developing microservices with Spring Boot, we will use the interface provided by others and design the interface for others to use. At this time, the collaboration between microservice applications needs to have certain specifications. Based on rpc Protocol, we usually have two ways of thinking: (1) the application that prov ...

Posted on Sat, 26 Oct 2019 00:51:23 -0400 by jimpat

PAT (Basic Level) 1080 MOOC final score (simulation + stl)

Title Link: Click to view Main idea: give the programming scores of a students, the mid-term test scores of b students, and the final test scores of c students. There are several rules: The general comment is: If the mid-term test score is greater than the final test score: Otherwise: Qu ...

Posted on Sat, 26 Oct 2019 00:42:45 -0400 by RichterBelmont

How Druid automatically logs in

First of all, why would you like to log in automatically? It must have a password, otherwise other people can directly access the project address + "/ druid", which is not safe; Don't want to log in twice (don't explain); Implementation ideas Menu configuration path toDruid; After jumping to the page, ajax triggers the doduid.json ...

Posted on Fri, 25 Oct 2019 16:44:53 -0400 by synking

Groovy quick start-9-List

In this article, I'll learn about list collection. List is a kind of collection container, which can hold various elements, and can also nest list. The elements in it are unordered. 1. Simple List getting element method Write a list with three kinds of fruits to see how to get the elements through ...

Posted on Fri, 25 Oct 2019 15:46:37 -0400 by madkris