Introduction
I am having a problem catching an InputMismatchException. I have read all of the threads on this site that appear on the first page when I search for InputMismatchException already. I found the answer to one of my questions while reading those threads; that answer taught me I had to add import java.util.InputMismatchException; in my import statements. However I'm having a different issue that I can't find in any solution to. The closest other question is this one. I think he was having the same issue as me, but that solution did not work for me.
My Issue
I'm making a class that demonstrates a ProductionWorker datatype that I made. I want to test all of the inputs to be sure that they are valid inputs that can be manipulated as expected. I'm trying to get a Double input for rate of pay, and I want to be asked to attempt inputting again if the input is wrong; say I accidentally input "gary" instead of my rate of pay. I figured a try-catch-finally would work but after entering the catch block I still get the InputMismatchException...
Console output
run:
What is your name: gary
Please enter employee number: 88-m
Incorrect employee ID, please check it and try again.
Enter employee number: 888-m
Please enter hire date as "MM/DD/YYYY": 07/14/1994
Please enter shift (1 for day shift, 2 for night shift.: 2
Please enter rate of pay: $h
Rate of pay can only be digits.
Exception in thread "main" java.util.InputMismatchException
Examples: 30.00; 22.10; 7.25; 10.00
at java.util.Scanner.throwFor(Scanner.java:864)
Please enter rate of pay: $ at java.util.Scanner.next(Scanner.java:1485)
at java.util.Scanner.nextDouble(Scanner.java:2413)
at programmingchallengeq1.ProgrammingChallengeQ1.main(ProgrammingChallengeQ1.java:69)
Picked up _JAVA_OPTIONS: -Xmx512m
C:\Users\nikru\AppData\Local\NetBeans\Cache\8.2\executor-snippets\run.xml:53: Java returned: 1
BUILD FAILED (total time: 15 seconds)
It looks to me like I make it into the catch block since that print statement is showing in the console, and I thought if I make it to the catch block the exception couldn't crash the program. I don't know what I'm doing wrong...
Code
/*
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*/
package programmingchallengeq1;
import java.util.Scanner;
import java.util.regex.*;
import java.util.InputMismatchException;
public class ProgrammingChallengeQ1 {
public static void main(String[] args)
{
Scanner kb = new Scanner(System.in);
final int SHIFT_LENGTH = 12;
ProductionWorker workman = new ProductionWorker();
System.out.print("What is your name: ");
workman.set_name(kb.nextLine());
System.out.print("Please enter employee number: ");
// ask user for id and save it to workman
workman.set_id(kb.nextLine());
// while loop ensures that employee num matches specific format
while (check_id(workman) == false)
{
System.out.print("Incorrect employee ID, please check it and" +
" try again.\n" + "Enter employee number: ");
workman.set_id(kb.nextLine());
}
System.out.print("Please enter hire date as \"MM/DD/YYYY\": ");
// ask user for date of hire and save it to workman
workman.set_hire_date(kb.nextLine());
// attempt to ensure a valid date was input with while loop
while(check_date(workman) == false)
{
System.out.println("Date not recognized, please check date" +
" and try again.\n" + "Enter hire date as \"MM/DD/YYY\": ");
workman.set_hire_date(kb.nextLine());
}
System.out.print("Please enter shift (1 for day shift, 2 for night"+
" shift.: ");
workman.set_shift(kb.nextInt());
// the while loop checks if a correct value is stored for shift
while(workman.get_shift() != 1 && workman.get_shift() != 2)
{
System.out.print("Unrecognized shift. Please enter a 1 for" +
" day shift, or 2 for night shift: ");
workman.set_shift(kb.nextInt());
}
System.out.print("Please enter rate of pay: $");
// attempt to ensure a valid rate of pay is input with try-catch
// boolean is the exit condition for while loop, which only breaks
// if the input is valid
boolean valid_input = false;
while (valid_input != true)
{
try
{
workman.set_pay_rate(kb.nextDouble());
valid_input = true;
}
catch(InputMismatchException ex)
{
//System.out.println(ex.getMessage());
System.out.print("Rate of pay can only be digits.\nExamples:" +
" 30.00; 22.10; 7.25; 10.00\nPlease enter rate of pay: $");
}
finally
{
workman.set_pay_rate(kb.nextDouble());
}
}
}
public static boolean check_id(ProductionWorker wrkr)
{
// creating a regex pattern to check against input employee ID
// to avoid inputting error
String id_format = "\\d{3}-[a-m]";
Pattern id_pattern = Pattern.compile(id_format);
// check id against compiled regex pattern and save to a bool
Matcher id_matcher = id_pattern.matcher(wrkr.get_id());
boolean id_matches = id_matcher.matches();
return id_matches;
}
public static boolean check_date(ProductionWorker wrkr)
{
//same concept as in check_id()
String date_format = "\\d{2}/\\d{2}/\\d{4}";
Pattern date_pattern = Pattern.compile(date_format);
Matcher date_matcher = date_pattern.matcher(wrkr.get_hire_date());
boolean date_matches = date_matcher.matches();
return date_matches;
}
}
All help appreciated, thank you!
