What is Flyway Flyway is an open-source database migration tool. It strongly favors simplicity and convention over configuration. Flyway is a simple open-source database version controller (agreed is larger than…
Given a string s, find the longest palindromic substring in s. You may assume that the maximum length of s is 1000. Example 1: Input: "babad" Output: "bab" Note: "aba" is also a valid…
Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may complete at most two transactions.…
Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may complete as many…
Given a string, find the length of the longest substring without repeating characters. Example 1: Input: "abcabcbb" Output: 3 Explanation: The answer is "abc", with the length of 3. Example 2: Input:…
You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it…
Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may assume that each input would have exactly one solution, and you may…
Microsoft wants smart people. Geeks. People who are passionate about technology. You probably won't be tested on the ins and outs of C++ APIs, but you will be expected to…
Design ideas In the development of the AWS system, many environments (such as production, verification, development) are often established according to the purpose. When using multiple environments, we want to:…
前言 单元测试是软件开发中必不可少的一环，但是在平常开发中往往因为项目周期紧，工作量大而被选择忽略，这样往往导致软件问题层出不穷。线上出现的不少问题其实在有单元测试的情况下就可以及时发现和处理，因此培养自己在日常开发中写单元测试的能力是很有必要的。无论是对自己的编码能力的提高，还是项目质量的提升，都是大有好处，本文将介绍 Java 单元测试框架 JUnit 5 的基础认识和使用来编写单元测试，希望同样对你有所帮助。 JDK 8JUnit 5.5.2Lomok 1.18.8 认识 JUnit 5 要说什么是 JUnit 5，首先就得聊下 Java 单元测试框架 JUnit，它与另一个框架 TestNG 占据了 Java领域里单元测试框架的主要市场，其中 JUnit 有着较长的发展历史和不断演进的丰富功能，备受大多数 Java 开发者的青睐。 而说到 JUnit 的历史，JUnit…