JDK 9/10/11: Side Effects From += on Java String – DZone Java

In this quick post, we take a look at a peculiar bug present in JDKs 9, 10, and 11 involving how the Java compiler interprets += on Java Strings.

Someone encountered a bug in the JDK 9+ Compilers. Interesting.
— Read on dzone.com/articles/jdk-91011-side-effects-from-on-java-string

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Truth First, or Why You Should Mostly Implement Database First Designs – Java, SQL and jOOQ.

In this much overdue article, I will explain why I think that in almost all cases, you should implement a “database first” design in your application’s data models, rather than a “Java first” design (or whatever your client language is), the latter approach leading to a long road of pain and suffering, once your project…
— Read on blog.jooq.org/2018/06/06/truth-first-or-why-you-should-mostly-implement-database-first-designs/

#truth

#databaseFirst

How get method of HashMap or Hashtable works internally in Java | Java67

At least you should know that :
1) Two unequal objects may return the same hashcode.
2) When two objects are equal by equals(), they must have the same hashcode.

— Read on www.java67.com/2013/06/how-get-method-of-hashmap-or-hashtable-works-internally.html

At least you should know that :

1) Two unequal objects may return the same hashcode.

2) When two objects are equal by equals(), they must have the same hashcode.

Read more: http://www.java67.com/2013/06/how-get-method-of-hashmap-or-hashtable-works-internally.html#ixzz5BLJNYY6Z