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package com.mycompany.app9;

import java.util.List;
import java.util.function.Function;
import java.util.stream.Collectors;
import java.util.stream.Stream;

/**
 *
 * @author Admin
 */
public class Main4 {

    public static void main(String[] args) {
        // использование map - в качестве параметра функция выполняющая отображения элемента
        System.out.println("F1:");
        Function<String, String> f1 = s -> "PREFIX_" + s;
        //Stream.of("ONE", "TW", "THREE", "FOUR", "A", "B", "C").map(f1).forEach(System.out::println);
        Stream.of("ONE", "TW", "THREE", "FOUR", "A", "B", "C").map(s -> "PREFIX_" + s).forEach(System.out::println);

        System.out.println("F2:");
        //Function<String, Integer> f2 = s -> Integer.valueOf(s);
        //Stream.of("1", "2", "3").map(f2).forEach(System.out::println);
        Stream.of("1", "2", "3").map(s -> Integer.valueOf(s)).forEach(System.out::println);

        List<Integer> list = Stream.of("1", "2", "3").map(s -> Integer.valueOf(s)).collect(Collectors.toList());
        for(Integer i: list){
            System.out.println("i=" + i);
        }
    }
}