Functional Programming in Java

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Function Composition

	symbols.map(StockUtil::getPrice)
	.filter(StockUtil.isPriceLessThan(500))
	.reduce(StockUtil::pickHigh)
	.get();

We can compose functions to transform objects through a series of operations like in this example. In the functional style of programming, function composition or chaining is a very powerful construct to implement associative operations.

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