Функционал протестировал - работает.
Где я не прав?
package com.javarush.task.task18.task1818;
import java.io.*;
import java.util.ArrayList;
/*
Два в одном
*/
public class Solution {
public static void main(String[] args) {
String fileOne;
String fileTwo;
String fileThree;
try (BufferedReader reader = new BufferedReader(new InputStreamReader(System.in))) {
fileOne = reader.readLine();
fileTwo = reader.readLine();
fileThree = reader.readLine();
} catch (IOException e) {
throw new RuntimeException(e);
}
String sourceOfSecondFile = fileReader(fileTwo);
String sourceOFThirdFile = fileReader(fileThree);
fileWriter(fileOne, sourceOfSecondFile, false);
fileWriter(fileOne, sourceOFThirdFile, true);
}
public static String fileReader(String fileName) {
StringBuilder content = new StringBuilder();
try (BufferedReader bufferedReader = new BufferedReader(new FileReader(fileName))) {
String line;
while ((line = bufferedReader.readLine()) != null) {
content.append(line).append("\n");
}
} catch (IOException e) {
throw new RuntimeException(e);
}
return content.toString();
}
public static void fileWriter(String targetFile, String sourceFileContent, boolean isAppend) {
try (Writer writer = new FileWriter(targetFile, isAppend)) {
/* if (isAppend) {
writer.write("\n");
}*/
writer.write(sourceFileContent);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
}