Best practices to name your JAR file in Java

If you are an author of an internal, proprietary Java library or an external open source library,  or you are one of those lucky developers who ship Java application by yourself then you should follow these best practices while naming your JAR files. These best practices are a result of the practical experience of using hundreds of Java library and application. Following these best practices will help  in better management of JAR files. It's part of my other best practices articles e.g. best practices while naming variable, writing comments, overriding methods, muli-threading, JDBC, and best practices while dealing with passwords. If you are interested in learning more best practices, you can always search those articles on this blog.

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Java Mistake 3 - Using "==" instead of equals() to compare Objects in Java

In this part of Java programming mistakes, we will take a look at another common pattern, where programmers tend to use "==" operator to compare Objects, similar to comparing primitives. Since equality of object can be very different in the physical and logical sense, and in the case of domain objects it's mostly driven by business rules, comparing objects with "==" operator, introduces subtle bugs, which are hard to find. The difference between equals() and == operator,  one of the Java classics is also asked to find out if the developer is familiar with this important concept or not. Using == operator only make sense when comparing primitives like int, or final constants like Enum. Though there is more involved in comparing two Enum, which you learn by following that link.

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