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How to Convert a List or Set of String to Comma Separated String (CSV) in Java 8

Before Java 8, it was not straightforward to convert a list of String to a comma separated String. You have to loop through the collection or list and join them manually using String concatenation, which can take up more than 4 lines of code. Of course, you could encapsulate that into your own utility method and you should but JDK didn't provide anything useful for such a common operation. Btw, things have changed. From Java 8 onwards you can do this easily. JDK 8 has provided a utility class called StringJoiner as well as added a join() method into String class to convert a List, Set, Collection or even array of String objects to a comma separated String in Java.

Top 10 Data Science and Machine Learning Certification Courses to Learn Online - Best of Lot

If you work in the technology field today like you are a programmer or software engineer then I am sure you have heard about terms like Data Science, Machine Learning, Deep Learning, Artificial Intelligence etc. They are the latest technologies which are impacting every single sector just like IT does it when it comes the first time. It doesn't matter if you are working for a bank or insurance sector, airspace or defense, all fields were impacted by IT and in near future, they will be impacted by machine learning and artificial intelligence. If you are wondering, let me give you a brief overview. Machine learning is all about training machines to do the job which was only possible by humans before, for example seeing a photo and recognizing what is the object like a car, a human or a cucumber.

3 Examples of Collect() method of Stream in Java 8

Hello guys, you may know that Java 8 brought Stream API which supports a lot of functional programming operations like filtermapflatMap, reduce, and collect. In this article, you will learn about the collect() method. The collect() method of Stream class can be used to accumulate elements of any Stream into a Collection. In Java 8, you will often write code which converts a Collection like a List or Set to Stream and then applies some logic using functional programming methods like the filter, map, flatMap and then converts the result back to the Collection like a ListSetMap, or ConcurrentMap in Java. In this last part, the collect() method of Stream helps. It allows you to accumulate the result into choice fo container you want like a list, set, or a map.