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December 12, 2016 12:53
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Sample to populate Java Stream
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//Stream from Collection | |
List<String> list = new ArrayList<>(); | |
list.add("s1"); | |
list.add("s2"); | |
list.add("s3"); | |
list.stream() | |
.map( s -> "From collection " + s) | |
.forEach(System.out::println); | |
//Stream from Arrays class | |
Arrays.stream(new Object[] { BigDecimal.ZERO, BigDecimal.ONE, BigDecimal.TEN }) | |
.map( s -> "From array " + s) | |
.forEach(System.out::println); | |
//Creating stream from primitive value | |
//In this case from integer value, generate number: 1 to 10 | |
IntStream.range(1, 11) | |
.mapToObj( s -> "From IntStream " + s) | |
.forEach(System.out::println); | |
//Creating stream from Stream interface | |
Stream.of(20.1d, 1.56d, 1.89d, 4.56d) | |
.map( s -> "From Stream.of " + s) | |
.forEach(System.out::println); |
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