1. ввод -вывод https://gyazo.com/a8a834075f6272e27df88ad8639b5c36
package com.javarush.task.task09.task0929;
import java.io.*;
/*
Обогатим код функциональностью!
*/
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
InputStream fileInputStream = null;
String sourceFileName = "";
String destinationFileName = "";
while(fileInputStream == null) {
sourceFileName = reader.readLine();
destinationFileName = reader.readLine();
try {
fileInputStream = getInputStream(sourceFileName);
} catch(IOException e) {
System.out.println("Файл не существует.");
}
}
OutputStream fileOutputStream = getOutputStream(destinationFileName);
while(fileInputStream.available() > 0) {
int data = fileInputStream.read();
fileOutputStream.write(data);
}
fileInputStream.close();
fileOutputStream.close();
}
public static InputStream getInputStream(String fileName) throws IOException {
return new FileInputStream(fileName);
}
public static OutputStream getOutputStream(String fileName) throws IOException {
return new FileOutputStream(fileName);
}
}