Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.io.RandomAccessFile;

public class Main {
    public static void main(String[] argv) throws Exception {

        RandomAccessFile raf = new RandomAccessFile("a.dat", "rw");
        int x, y;

        for (long i = 0, j = raf.length() - 1; i < j; i++, j--) {
            raf.seek(i);
            x = raf.read();
            raf.seek(j);
            y = raf.read();

            raf.seek(j);
            raf.write(x);
            raf.seek(i);
            raf.write(y);

        }
        raf.close();
    }
}