Java Code

1. how to use Java Arrays.sort
2. Java Future introduction and sample in detail
3. Java Math.round sample
4. Merge two videos in Java , video fade in from right side a...
5. Java Date format to String
6. SpringMVC quick start @Controller @Service @Repository
7. Decimal,Hex,Binary convert to each other in Java
8. Three type of OutOfMemoryError in Java
9. HTTP response code menu book-200,302, 400,404,500
10. Spring AOP source code inside
11. How to choose between Java Reentrantlock and synchronized k...
12. What is adaptive spinning lock ,lightweight lock and bias l...
13. String intern in Java and how to use String intern
14. What is Spring AOP and CGLIB
15. Spring Transaction introduction and source code analysis
16. JIT in Java
17. what is circular buffer (ring buffer) , how to use in Java
18. Spring cloud hystrix sample
19. Spring Feign sample
20. What is circle breaker and hystrix sample in Spring cloud

Bigdata and FullStack

1. Linux Expect command example
2. How to use Oracle trunc round ceil and floor
3. Environment variables setting in Ubuntu Linux
4. how to find file in Linux
5. mysql truncate vs delete and drop
6. Spark running mode:Local mode, standalone,on yarn
7. use regex to match positive or negative number,Chinese char...
8. use regex to match email
9. Check Centos version
10. list file size in Linux - ls command introduction
11. what's the different between folder webapps and wtpwebapps
12. Zookeeper ZAB and Paxos
13. Distributed transaction - 2PC vs 3PC
14. how to implement distributed transaction (2PC or TCC)
15. Zookeeper leader election
16. What's the different bewteen ASC and DESC in SQL
17. Service Mesh introduction
18. database isolation level - Atomicity Consistency Isolation ...
19. Eureka self-protection,service regiseter and workflow
20. Zero copy : mmap and sendfile in detail