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April 18, 2024 03:19 am GMT

7

Java1

(str) -> { return Integer.parseInt(str); } String Integer java.util.function Function<T,R> T StringR Integer

  • Consumer<T>: 1
  • Function<T,R>: 1
  • Supplier<T>:
  • Predicate<T>: 1boolean

String Integer Function<T,R> Function 


import java.util.function.*; // java.util.functionpublic class Main {    public static void main(String[] args) {        // FunctionStringInteger        Function<String, Integer> func = (str) -> {            return Integer.parseInt(str); // StringInteger        };        // Functionapply"100"Integer2        System.out.println(func.apply("100") * 2);     }}

Function apply apply "100" String Integer.parseInt Integer 2 Function BFunction


Original Link: https://dev.to/aaattt/8zhang-7-15ln

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