IOException....try...catch...

Dear All,
            can someone please post me the correct code for the
following code. I'd like to put the condition, mark must be minimum 0
and maximum 100 using Exception ( try ... catch ).

/*
   This Java program list all the marks which are outside the
specified
   range and need the lecturer's attention, once all the marks have
been entered.
*/

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.sql.Array;
/*
 * Task3.java
 *
 *
 */

/**
 *
 * @author Bhavish Sharma Hurreeram=A9 - psychoma...@hotmail.com
 */

public class Task3 {

    private String name;
    private String mark;

    /** Creates a new instance of Task3 */
    public Task3() {

    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

     public String getMark() {
        return mark;
    }

    public void setMark(String mark) {
        this.mark = mark;
    }

     public static void main(String args []) throws IOException{

          Task3 task3 = new Task3();
          task3.readFile();
    }

    public void readFile() throws FileNotFoundException, IOException
    {
          String line="";
          int marks=0;
          BufferedReader in = new BufferedReader(new
FileReader("MarkFile.txt"));

          while (( line = in.readLine()) != null){
              name = line.substring(0,48);
              mark = line.substring(48).trim();
              try{
                marks=Integer.parseInt(mark);
                          }

                         catch(Exception e){
                                //System.out.println("An Erroneous
mark");
                                displayErrors();
                         }

             for(int i=name.length();i<48;i++) {
               name += " ";
             }

             for(int i=mark.length();i<7;i++) {
               mark += " ";
             }

             setName(name);
             setMark(mark);

             if(marks < 0 || marks > 100){
                                displayErrors();
             }

                }

        }

    public void displayErrors()
    {
        System.out.println(getName() + " " + getMark() + " An
Erroneous mark");
    }