How to apply a function on each element of a List in Java

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// {...}
List<Integer> integers = Arrays.asList(1, 2, 3, 4, 5);
List<Integer> newIntegers = integers.stream()
.filter(i -> i <= 3)
.map(i -> 2*i)
.collect(Collectors.toList());
System.out.println(newIntegers);
// {...}
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