Complete the following file:

TextMangler.java

import java.io.IOException; import java.io.RandomAccessFile; public class TextMangler { public static void swapAdjacentBytes(RandomAccessFile file) throws IOException { // TODO: complete } // this method checks your work public static void main(String[] args) throws IOException { RandomAccessFile file = new RandomAccessFile("data.txt", "rw"); swapAdjacentBytes(file); file.close(); } }