16. bytestream - (5) FileCopyDemo5 ( 음악파일 복사 - Buffer 사용 )

package bytestream;
 
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
 
public class FileCopyDemo5 {
 
    public static void main(String[] args) throws FileNotFoundException, IOException{
        System.out.println("파일 복사를 시작합니다.");
        long startTime = System.currentTimeMillis();
        
        FileInputStream fis = new FileInputStream("c:/files/SleepAway.mp3");
        FileOutputStream fos = new FileOutputStream("c:/files/sleep away.mp3");
        
        BufferedInputStream bis = new BufferedInputStream(fis);
        BufferedOutputStream bos = new BufferedOutputStream(fos);
        
        int value = 0;
        while ((value = bis.read()) != -1) {
            bos.write(value);
        }
        
        bis.close();
        bos.close();
        
        long endTime = System.currentTimeMillis();
        System.out.println("파일 복사가 종료되었습니다.");
        System.out.println("소요시간 : " + ((endTime - startTime) / 1000 + "초"));
        
    }
}