Web Reference: In this course, expressions and the Streams API to program in a more functional style using JDK 8. This will enable you to solve common problems in a more concise and more flexible way that can take advantage of multiple cores and CPUs in your machine From this course, you can learn Functional Programming in Java with Lambda expressions (anonymous functions), Method references, and Stream API. There are a lot of other courses on this topic. Lambda expressions are used primarily to define inline implementation of a functional interface, i.e., an interface with a single method only. In the above example, we've used various types of lambda expressions to define the operation method of MathOperation interface.
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