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Numeric Streams - Methods

Deepika Sahu answered on December 29, 2022 Popularity 1/10 Helpfulness 1/10

answer Numeric Streams - Methods

related Numeric Streams

Numeric Streams - Methods

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class Calculations {

	public static void main(String[] args) {

		//IntStream
		//DoubleStream
		//LongStream
		
		//Sum
		
		int sum  = IntStream.of()
		.sum();
		
		System.out.println(sum);
		
		//max() Optional : primitive
		
		OptionalInt maxOptional = IntStream.of(1,3,4,5)
		.max();
		
		System.out.println(maxOptional.getAsInt());
		
		//min() : Optional Primitive
		
		OptionalInt minOptional = IntStream.of(1,2,3,4)
		.min();
		
		System.out.println(minOptional.getAsInt());
		
		//average() OptionalDouble
		
		OptionalDouble avgOptional = IntStream.of(1,2,3,4)
				.average();
				
				System.out.println(avgOptional.getAsDouble());
		
		//summaryStatistics()
				
				IntSummaryStatistics summaryStatistics = IntStream.of(1,2,34)
				.summaryStatistics();
				
				System.out.println(summaryStatistics);
		
	}

}

Popularity 1/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: java methods

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Contributed on Dec 29 2022

Deepika Sahu

0 Answers Avg Quality 2/10

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Numeric Streams

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class NumericStreams {

	public static void main(String[] args) {
		
		List<Book> list = new ArrayList<>();

		list.add(new Book("The Alchemist", "Paulo Coelho", "Adventure", 4.408789797));
		list.add(new Book("The Notebook", "Nicholas Sparks", "Romance", 4.10));
		list.add(new Book("Horror Cocktail", "Robert Bloch", "Horror", 2.67));
		list.add(new Book("House of Leaves", "Mark Z. Danielewski", "Horror", 4.10908908));
		
		OptionalDouble average = list.stream()
		.mapToDouble(book -> book.getRating())
		.average();
		
		System.out.println(average.getAsDouble());
		
		//map : Objects
		
		//mapToDouble : primitive double
		
		IntStream intS = IntStream.of(1,3,5,8);
		DoubleStream doubleS = DoubleStream.of(1,3,5,8);
		LongStream longS = LongStream.of(1L,3L,5L,8L);
		
		Stream<Integer> boxedInts = intS.boxed();
		
		doubleS.mapToObj(val -> val);
		
	}

}

Popularity 2/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: java

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Contributed on Dec 29 2022

Deepika Sahu

0 Answers Avg Quality 2/10

Numeric Streams - Methods

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