Lab 3.3 Input

import java.io.FileNotFoundException;
import java.util.*;
import java.io.*;
import java.lang.*;

public class inputoutput {

    public static void main(String[] args) {

        Formatter output;
        String name;
        int mark = 0;

        Scanner input = new Scanner(System.in);

        try{
            output = new Formatter("Students.txt");
            System.out.print("Enter name: ");
            while(input.hasNext()){
                name = input.next();
                System.out.print("Enter mark: ");
                mark = input.nextInt();
                output.format("%s %d\f\n", name, mark);
                System.out.print("Enter name: ");
            }
            if (output != null){
                output.close();
            }
        } catch(SecurityException se){
            System.out.println("You do not have write access");
        } catch(FileNotFoundException fe) {
            System.out.println("Error opening/creating file.");
        }

    }

}