Algorithm 14 Browser 1 Linux 15 Design Patterns 13 Expression 1 Front End 4 Git 1 JMS 1 Java Concurrent 15 JVM 1 Java 32 Java Web 2 Maven 2 MySQL 9 Nginx 2 NodeJS 3 Project Experiment 3 Office 1 Spring Boot 6 Spring Cloud 9 Spring MVC 5 Spring 8 Swagger 1 Tomcat 5 Vue 6 Website Basics 4 IO 2 JavaScript 3 Kafka 1 Logging 2 Open Source 1 Redis 2 Spring Security 13 Elasticsearch 1 NPM 1