Nggarap file nggunakake FileInputStream lan FileOutputStream

Nggarap file karo FileInputStreamlan FileOutputStream. Aku maca buku Schildt lan entuk titik nggarap file. Conto ujar manawa sampeyan kudu mbukak program saka baris perintah lan ketik jeneng file. Nanging aku sinau ing IntelliJ. Kepiye cara nggarap file kanthi nemtokake dalane? Iki contone:

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class CopyFile {
    public static void main(String[] args) {
        int i;

        FileInputStream fin;
        FileOutputStream fout;

        if (args.length != 2) {
            System.out.println("Usage: CopyFile From To.");
            return;
        }

        try {
            fin = new FileInputStream(args[0]);
        } catch (FileNotFoundException exc) {
            System.out.println("Input file not found.");
            return;
        }

        try {
            fout = new FileOutputStream(args[1]);
        } catch (FileNotFoundException exc) {
            System.out.println("Error opening output file.");
            try {
                fin.close();
            } catch (IOException exc2) {
                System.out.println("Error closing input file.");
            }
            return;
        }

        try {
            do {
                i = fin.read();
                if (i != -1) fout.write(i);
            } while (i != -1);
        } catch (IOException exc) {
            System.out.println("Fi;e error.");
        }

        try {
            fin.close();
        } catch (IOException exc) {
            System.out.println("Error closing input file.");
        }

        try {
            fout.close();
        } catch (IOException exc) {
            System.out.println("Error closing output file.");
        }
    }
}