Top 5 Courses to learn Java Collections and Stream API in 2022 - Best of Lot

Hello guys, If you have been programming in Java, then you know that Collections and Streams are two of the most important Java APIs. There is hardly any Java program I have written in my 15 years of professional Java development career where I have not used any classes from Collections and recently from Stream API. I strongly believe that every Java developer should have a good knowledge of both of them, and that's why I am writing this post. If you are new to Java, then you might be thinking about why they are so important? Well, they are important becuase they deal with data, and data is at the heart of every application and business. For example, if you create an application like Facebook, then where do you store your Users on memory?

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