/*
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 */
package com.mycompany.app9;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.Stream;

/**
 *
 * @author Admin
 */
public class Main {
    //
    public static void main(String[] args) {
        //
        List<String> list = new ArrayList<>();
        list.add("array1");
        list.add("array2");
        list.stream().forEach(System.out::println);
        //
        Stream<String> s = list.stream();
        s.forEach(System.out::println);
        //s.forEach(System.out::println);
        //
        System.out.println("Iterator for List:");
        Iterator<String> i = list.iterator();
        while(i.hasNext()){
            String value = i.next();
            System.out.println("value=" + value);
        }
        System.out.println("Iterator for Stream:");
        Iterator<String> i1 = list.stream().iterator();
        while(i1.hasNext()){
            String value1 = i1.next();
            System.out.println("stream.value=" + value1);
        }
        System.out.println("PRINT STREAM ELEMENTS:");
        // использование метода of для создания потока Stream
        Stream<String> s3 = Stream.of("ONE", "TWO");
        s3.forEach(System.out::println);

        System.out.println("collect - method (toList):");
        Stream<String> s4 = Stream.of("ONE", "TWO");
        // использовние метода collect и класса Collectors
        List<String> result = s4.collect(Collectors.toList());
        for(String val: result){
            System.out.println("val=" + val);
        }
        System.out.println("collect - method (toSet):");
        Stream<String> s5 = Stream.of("ONE", "TWO", "ONE");
        // использовние метода collect и класса Collectors
        Set<String> result2 = s5.collect(Collectors.toSet());
        for(String val: result2){
            System.out.println("val2=" + val);
        }
    }
}