MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

public class MainClass {

    public static void main(String[] args) {

        if (args.length != 2) {
            System.err.println("Usage: java MainClass infile outfile");
        }
        try {
            copy(args[0], args[1]);
        } catch (IOException ex) {
            System.err.println(ex);
        }
    }

    public static void copy(String inFile, String outFile) throws IOException {

        FileInputStream fin = null;
        FileOutputStream fout = null;

        try {
            fin = new FileInputStream(inFile);
            fout = new FileOutputStream(outFile);
            copy(fin, fout);
        } finally {
            try {
                if (fin != null)
                    fin.close();
            } catch (IOException ex) {
            }
            try {
                if (fout != null)
                    fout.close();
            } catch (IOException ex) {
            }
        }
    }

    public static void copy(InputStream in, OutputStream out) throws IOException {

        byte[] buffer = new byte[1024];
        while (true) {
            int bytesRead = in.read(buffer);
            if (bytesRead == -1)
                break;
            out.write(buffer, 0, bytesRead);
        }
    }
}