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Question of the day by DobbyKim :)

Posted on Aug. 8, 2022, 6:19 p.m. by Lesley Hargreaves
Category: The back-end Tag: The back-end java

Welcome to my column:)

[DobbyKim's problem of the day] aims to record my personal learning from the problem

There may be wrong words or even wrong understanding in my answer. I hope that the great god found can correct my mistakes at any time. I will learn humbly and make improvements.

Finally, your likes, subscriptions and followings are my motivation to keep updating. Come on

The date of type The title answer
2021-06-30 Java based Analyze the results of the program and explain why? answer
2021-07-01 Java based Initialize an empty ArrayList. What is the capacity of the underlying array? After adding an element, what is the capacity? answer
2021-07-01 Java based Analyze the results of the program and explain why? answer
2021-07-01 Java based Why is the initial capacity of a HashMap designed to be idempotent 2? answer
2021-07-02 Java based Do you understand the expansion mechanism of ArrayList? What is the expansion factor? Why is that? answer
2021-07-05 Java based What is the difference between an inner class and a static inner class? answer
2021-07-05 Java based Analyze the results of the program and explain why? answer
2021-07-06 Java based What is the difference between String, StringBuilder, and StringBuffer? answer
2021-07-06 Java based Understand the agency model? What are the differences between CGLIB dynamic proxies and JDK dynamic proxies? answer
2021-07-07 Java based What are the ways to create objects in Java? answer
2021-07-07 Java based Describe in as much detail as possible what happens when we create a new object. answer
2021-07-09 Java based What is method overloading? What is method overwriting? answer
2021-07-09 Java based What's the difference between Error and Exception? answer
2021-07-09 Java based Can methods declared in interfaces only be abstract methods? answer
2021-07-09 Java based What about value passing and reference passing? Is there only value passing in Java? answer
2021-07-12 Java based Does the finally block have to be executed when code is executed to a try block? answer
2021-07-12 Java based What have you learned about Exception handling in Java? answer
2021-07-14 MySQL How does a MySQL query execute? answer
2021-07-16 MySQL MySQL alter database redo log; answer
2021-07-16 MySQL Why are redo logs committed in two phases? answer
2021-07-20 MySQL What about MySQL transactions? answer
2021-07-21 MySQL What is the difference between primary key query and normal index query in MySQL based on InnoDB engine? answer
2021-08-02 MySQL MySQL index cover index, union index, and index push down answer
2021-06-30 Spring What is the difference between an @Autowired annotation and an @Resource annotation? answer

Continuously updated...

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