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Function interface

Java

Posted at 2023-01-12

Interface Function<T,R>
Type Parameters:
T - the type of the input to the function
R - the type of the result of the function

given argumentに対し処理を行い、結果を返す
下記の例はgiven stringのlengthを返す

public class Outer {
    public static void main(String[] args) {
        Function<String, Integer> f = x -> x.length();
        System.out.println(f.apply("abc"));
    }
}

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