Java Program to explain randomaccessfile class, Write an application that that use randomaccessfile class

Java Program to explain  randomaccessfile class, Write an application that that use randomaccessfile class

Program
import java.io.*;

class Tail
{
public static void main(String args[])
{
try
{
RandomAccessFile raf=new RandomAccessFile(args[0], "r");

long count=Long.valueOf(args[1]).longValue();

long position=raf.length();

position-=count;
if(position<0)
position=0;

raf.seek(position);

while(true)
{
try
{
byte b=raf.readByte();

System.out.print((char)b);

}
catch(EOFException eofe)
{
break;
}
}
}
catch(Exception e)
{
e.printStackTrace();
}
}
}