What are some practical examples of Java 8 features?
An example of an AI chatbot conversation about Java 8 practical examples and features.
What are some practical examples of Java 8 features?
Java 8 introduced several features like Lambda expressions, Streams, and the Optional class. Would you like examples of each?
Yes, please provide an example of a Lambda expression.
Sure! A Lambda expression can be used to implement a functional interface. For example: Runnable r = () -> System.out.println("Hello, World!");.
That's great! What about Streams?
Streams allow you to process sequences of elements. For instance, you can filter a list: List<String> filtered = list.stream().filter(s -> s.startsWith("A")).collect(Collectors.toList());.
And how does the Optional class work?
The Optional class helps avoid null checks. For example: Optional<String> name = Optional.ofNullable(getName()); name.ifPresent(n -> System.out.println(n));.
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