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Java 9 Cookbook by Nick Samoylov, Mohamed Sanaulla

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Getting ready

Before Java 9, there were several ways of creating collections. Here is the most popular way that was used to create List:

List<String> list = new ArrayList<>();list.add("This ");list.add("is ");list.add("built ");list.add("by ");list.add("list.add()");//Let us print the created list:list.forEach(System.out::print);

Notice the usage of a default method, forEach(Consumer), added to the Iterable interface in Java 8.

If we run the preceding code, we get this:

The shorter way of doing this would be by starting with an array:

Arrays.asList("This ", "is ", "created ", "by ",               "Arrays.asList()").forEach(System.out::print);

The result ...

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