java lambda iterate list

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Ariadna
10 Nov 2018
1List<String> items = new ArrayList<>();
2items.add("A");
3items.add("B");
4items.add("C");
5items.add("D");
6items.add("E");
7
8//lambda
9//Output : A,B,C,D,E
10items.forEach(item->System.out.println(item));
11
12//Output : C
13items.forEach(item->{
14	if("C".equals(item)){
15		System.out.println(item);
16	}
17});
18
19//method reference
20//Output : A,B,C,D,E
21items.forEach(System.out::println);
22
23//Stream and filter
24//Output : B
25items.stream()
26	.filter(s->s.contains("B"))
27	.forEach(System.out::println);
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