annotating small java code in detail and writing a report

basically i have a simple code done and just need some body to annotate the code in detaile and write up a report regarding the code. example of code. import [login to view URL]; import [login to view URL]; import [login to view URL]; import [login to view URL]; import [login to view URL]; import [login to view URL]; public class Test { public static String inputFileName; public static String outptFileName; public static void main(String [] arg){ if(arg.length==0){ [login to view URL]("Please enter the absolute path of the input file.n"); InputStreamReader isr=new InputStreamReader([login to view URL]); BufferedReader br=new BufferedReader(isr); try { Test.inputFileName=[login to view URL](); [login to view URL]("nPlease enter the absolute path of the output filen"); Test.outptFileName=[login to view URL](); } catch (IOException e) { [login to view URL](); } }else if(arg.length==2){ inputFileName=arg[0]; //if the input file is given as a command line parameter. outptFileName=arg[1]; //if the output file is given as a command line parameter. } else{ [login to view URL]("Usage : java Test <input file> <output file>n"); [login to view URL]("or Usage: java Testn"); return; } File file=new File(inputFileName); BufferedReader bufferedFileReader=null; try { bufferedFileReader=new BufferedReader(new FileReader(file)); } catch (FileNotFoundException e) { [login to view URL](); } MarkBook myMarkBook = new MarkBook("CS101", "Java", "Maths", "Stats", "Networks", "Database"); try { while(true){ String line = [login to view URL](); if(line==null)break; String surname=[login to view URL](0, [login to view URL](" ", 0)); String forename=[login to view URL](10,[login to view URL](" ", 10)); String g1=[login to view URL]([login to view URL](20)); String g2=[login to view URL]([login to view URL](21)); String g3=[login to view URL]([login to view URL](22)); String g4=[login to view URL]([login to view URL](23)); String g5=[login to view URL]([login to view URL](24)); [login to view URL](surname, forename, g1, g2, g3, g4, g5); } } catch (IOException e) { [login to view URL](); } [login to view URL](); }//end method main() } //end class Test