Writing in the front

Before we get into the main body, let’s talk about a few questions that we should consider

I’d like to share with you three questions that I think you should keep thinking about as you get older and learn more about life:

1. Am I cut out to be a programmer?

Should I be a programmer for the rest of my life?

3. What kind of attitude do I have towards programming? Is it enough or research?

Finally, define your own career plan, take responsibility for your own plan and work towards it.

Without further ado, let’s move on to the main body

About Professional Skills

It should be noted that not everything on this list is necessary — but the more knowledge you have, the higher your ratings and salary will be.

  • The basic grammar

  • This includes the use of static, final, transient, foreach loops, and so on

  • A collection of

  • List, Map, Set, etc.

  • Design patterns

  • Know the strengths and weaknesses of common design patterns.

  • Ability to draw UML diagrams of common design patterns.

  • multithreading

  • The difference between Thread and Runnable, and the connection between Thread and Runnable.

  • The JDK source

  • List, Map, Set implementation class source code

  • ReentrantLock, AQS source code

  • AtomicInteger implementation principle, can mainly explain the CAS mechanism and AtomicInteger is how to use CAS mechanism to achieve

  • Implementation principle of thread pool

  • Methods in the Object class and what each method does

  • The framework

  • Proficiently use the three frameworks

  • The database

  • SQL basics and SQL optimization content

  • The Java virtual machine

  • Memory layout of the Java VIRTUAL machine

  • GC algorithm and several garbage collectors

  • The class loading mechanism, also known as the parent delegate model

  • Java memory model

  • Happens-before rules

  • Rules for using the volatile keyword

Architects learn about graphs

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Multithreading and high concurrency

JVM

distributed

High load, high concurrency, high availability

In order to better read, the following will not be sent, interested friends can find small make up to the detailed architecture atlas:

Just check out the blogger’s home page

Related documents

Related video materials

Interview materials

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