package cn.netkiller.test;

import lombok.Data;

import java.io.IOException;
import java.util.stream.Collectors;
import java.util.stream.Stream;

@Data
public class Test {
    public static void main(String[] args) throws IOException {
        Stream.of("one", "two", "three", "four").filter(e -> e.length() > 3)
                .peek(e -> System.out.println("Before value: " + e))
                .map(String::toUpperCase)
                .peek(e -> System.out.println("After value: " + e))
                .collect(Collectors.toList());
    }
}