CHALLENGE

ACTIVITY

$4\mathrm{.}3\mathrm{.}1$: Exceptions with files.

$5225623578194$ quazay?

Jump to level $1$

String spinachDataName is read from input. The try block opens a file named spinachDataName using a try$-$with$-$resources statement, and reads an integer from the file into inValue.

Write an exception handler to catch a FileNotFoundException and assign hasErr with true.

Ex: If the input is spinach$1.$txt$,$ then the output is:

Value read from spinachl.txt: $40$

Success: File processed

Ex$.$ If the input is nothing. $txt,$ then the output is:

nothing.txt: Error occurred

$\backslash$table$[[$spinach$2.$txt$,$spinach$3.$txt$]]$

import java.util. Scanner;

import java.io$.$FileInputStream;

import java.io$.$FileNotFoundException;

public class ReadDatafile $\{$

public static void main$($String args$)\{$

Scanner scnr $=$ new Scanner$($

System.in$)$;

String spinachDataName;

int inValue;

boolean hasErr $=$ false;

spinachDataName $=$ scnr$.$ next$()$;

try $($Scanner spinachScanner $=$ new Scanner$($new FileInputStream$($spinachDataName$)))\{$

inValue $=$ spinachScanner $.$nextInt $()$;