Function compose method java 8

Function<Integer, Integer> multiply = (value) -> value * 2;
Function<Integer, Integer> add      = (value) -> value + 3;

Function<Integer, Integer> addThenMultiply = multiply.compose(add);

Integer result1 = addThenMultiply.apply(3);
System.out.println(result1);

Source: tutorials.jenkov.com

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