Question

Create a Scanner that wraps a file using a specified character set. Get the name of the file to wrap and the character set from the command line. Use a try catch block to handle any exceptions. Your program should display the bad file and the bad character set that caused the exception. I should not see a stack trace.

Answer 1

import com.sun.org.apache.xpath.internal.SourceTree;

import java.io.*;
import java.util.*;


class Main {


    public static void main(String[] args) throws FileNotFoundException {
        //Prompt file name and encoding char set
        Scanner in = new Scanner(System.in);
        System.out.println("Enter file name");
        String name = in.next();
        System.out.println("Enter encoding type");
        String type = in.next();
        try {
            //Constructor that takes file name and char set
            Scanner obj = new Scanner(new File(name), type);
        }
        //Catch both exceptions
        catch (FileNotFoundException fe) {
            System.out.println("File "+name+" not found");
        } catch (IllegalArgumentException i) {
            System.out.println("Char set "+type+" Not valid");
        }
    }
}

OUTPUT :