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45 year old programmer tells you: why do programmers want to change jobs? It's too true
2022-07-01 01:32:00 【Sweep bug】
The author has been in the Internet industry 25 Years. , I've seen too much sophistication . Today's Internet industry is no longer 20 Years ago, the Internet environment , There are always some people who are misleading the young people nowadays .
Why is programmer a job hopping profession
In most cases , The growth rate of personal skills of programmers , Far larger than the size of the company or the growth rate of the business . Against the backdrop of the growth of the personal index , Do not select job hopping , Improve your professional skills , The growth of income is obviously disadvantageous .

Why do domestic programmers like to jump around
Man's ambition expands with his position , No one likes to be complacent , Every time , Pay doubled , Then I want to double my salary , Will continue to learn , The growth of knowledge acquisition , And personal progress in all aspects . Why can't you do it in your old company , Because of the lack of Bole , The most important reason , In order to control capital , Your salary will not be doubled . Then jump around , Wages are getting higher and higher , Can it not smell ?
Why the more job hopping, the higher the salary
There is a strange phenomenon , The increase for a programmer within the company will not exceed% 20, But the company will take percent 50 The increase in the number of people recruited from outside , So job hopping is one of the reasons why programmers' salaries are getting higher and higher .
Why doesn't the company put 50% To recruit a new person for you ?
Considering so many people in the company , Give Zhang San a raise 50%, Should Li Si go up , Wang Wu, do you want to go up , If the total staff increases, the labor cost will increase greatly ,HR I'm not a fool , So you can only increase your salary by changing jobs , Companies are also willing to pay higher prices to hire people from outside .
So job hopping is the only way to get a raise. That's right .
Here I share one for free GitHub Superscript star 120k Of 《Java Comprehensive analysis of core advanced knowledge 》 Let's see , Whether it's used to consolidate the foundation , You can collect one for technical improvement , Read and learn thoroughly , Interview big factory so easy.
Here are some screenshots , Free download method is attached at the end of the article .
( One ). Basics
1、Java Basic skill
- Java introduction ( Basic concepts and common sense )
- Java grammar
- Basic data type
- Method ( function )

2、Java object-oriented
- Classes and objects
- Three characteristics of object orientation
- Modifier
- Interfaces and abstract classes
- Other important knowledge points

3、Java The core technology
- aggregate
- abnormal
- Multithreading
- File with the I\O flow

( Two ). Concurrent
1、 Concurrent container
- JDK Summary of concurrent containers provided
- ConcurrentHashMap
- CopyOnWriteArrayList
- ConcurrentLinkedQueue
- BlockingQueue
- ConcurrentSkipListMap

2、 Thread pool
- The benefits of using thread pools
- Executor frame
- ( important )ThreadPoolExecutor Class introduction
- ( important )ThreadPoolExecutor Examples of use
- Several common thread pools are explained in detail
- ScheduledThreadPoolExecutor Detailed explanation
- Thread pool size determination

3、 Optimistic lock and pessimistic lock
- What is pessimistic lock and optimistic lock
- There are two common ways to implement optimistic locks
- Disadvantages of optimistic lock
- CAS And synchronized The use of

( 3、 ... and ). JVM
1、Java Memory area
- summary
- Run time data area
- HotSpot Exploring virtual machine objects
- Key supplementary content

2、JVM Garbage collection
- uncover JVM The mystery of memory allocation and recovery
- The object has died ?
- Garbage collection algorithm
- Garbage collector

3、JDK Monitoring and troubleshooting tools
- JDK Command line tools
- JDK Visual analysis tools

( Four ) The Internet 、linux、 Data structure and algorithm 、 database 、 The system design 、 Must know tool 、 Interview guide

Because the space is limited , Other contents will not be shown one by one , This advanced note has a total of 512 page . It should be very helpful for small partners who want to advance , I hope it can help you .
You can click on the business card below for free .
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