Jiayi's Blog

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LeetCode EFS

935. Knight Dialer This question is a great example of seeing a problem from forward or backward! Also, it looks like we should always think about separating the program into stages and t...

Posted by Jiayi.Liu on December 20, 2019

Aspect Oriented Programming

Spring with AspectJ

Resources Intro to AOP Spring AOP Reference & Tutorial Basic Idea of AOP As shown in the above graph, the idea of AOP (Aspect Oriented Programming) is to cut the program running...

Posted by Jiayi.Liu on December 19, 2019

C++ Fundation

I need this language for interview but apparently a programming language is just a tool for development. We should focus more on how we can design a system/software with this language. Related...

Posted by Jiayi.Liu on December 15, 2019

Daily Programming Questions

646. Maximum Length of Pair Chain Just like other knowledge, it takes building blocks for analyzing. Now I’m not familiar enough for all these building blocks including dynamic programming and ...

Posted by Jiayi.Liu on November 5, 2019

Daily Programming Questions

1062. Longest Repeating Substring The key idea used in this question is: Iterate over length of substring instead of every char / substring in the string. Consider the iterating of lengt...

Posted by Jiayi.Liu on October 22, 2019

IntelliJ IDEA Using Experiences

General Operations Note that all the below operations are based on MacOS. Preference The preference window can be found at IntelliJ IDEA -> Preference. Project Structure As show...

Posted by Jiayi.Liu on August 14, 2019

Maven Tutorial

Introductions to Maven This tutorial is a great resourse for learning maven basics, which also answered the following questions. What is building tool and why we need one How Maven work Fin...

Posted by Jiayi.Liu on August 13, 2019

Strust & Spring & Mybatis

Mybatis Some Operation For MySQL Check MySQL port: Firstly login to mysql with mysql -u root -p then use sql request SHOW GLOBAL VARIABLES LIKE 'PORT'; to get the port. Mybatis Major Procedu...

Posted by Jiayi.Liu on July 31, 2019

Java Database Connector - JDBC

MySQL Install MySQL Server To play with JDBC, the first step is always to set up a database, for here, MySQL. For MacOS, it is very convenient to set up MySQL with homebrew. Check this a...

Posted by Jiayi.Liu on July 25, 2019

Tomecat & Java Servlet & JSP

This post is based on How2J tutorial and the offcial website of Apache Tomecat. Set Up Tomcat Web Server In unix system, to bind webserver with port number less than 1024, we need to sudo ...

Posted by Jiayi.Liu on July 24, 2019