тестировал на файлах, все работает, а вот валидатор ругается ((
package com.javarush.task.task18.task1818;
import java.io.*;
import java.util.Scanner;
import java.util.stream.Collectors;
import java.util.stream.Stream;
/*
Два в одном
*/
public class Solution {
public static void main(String[] args) throws IOException {
File[] fileNames = new File[3];
Scanner scanner = new Scanner(System.in);
for (int i = 0; i < fileNames.length; i++) {
fileNames[i] = new File(scanner.nextLine());
}
scanner.close();
writeToFile(fileNames[0], readFile(fileNames[1]));
writeToFile(fileNames[0], readFile(fileNames[2]), true);
}
public static String readFile(File file) throws IOException {
String collect;
try (BufferedReader reader = new BufferedReader(new FileReader(file))) {
try (Stream<String> lines = reader.lines();) {
collect = lines.collect(Collectors.joining("\n"));
}
}
return collect;
}
public static void writeToFile(File file, String text) throws IOException {
try (BufferedWriter writer = new BufferedWriter(new FileWriter(file))) {
writer.write(text);
}
}
public static void writeToFile(File file, String text, boolean info) throws IOException {
try (BufferedWriter writer = new BufferedWriter(new FileWriter(file, info))) {
writer.newLine();
writer.write(text);
}
}
}