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Thread: sentinal not working

  1. #1
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    Default sentinal not working

    can anyone tell me why the "stop" command does not work?

    package payroll;

    import java.util.Scanner;

    public class Payroll {

    public static void main( String[] args )
    {
    Scanner input = new Scanner( System.in );
    String name;
    double wage;
    int hours;
    double pay;


    System.out.print( "Welcome to the Payroll Calculator\n\n" );

    System.out.print( "Enter the employee's name: " );
    name = input.nextLine();

    while (name.compareTo("stop") != 0 )
    {

    System.out.print( "Enter the employee's wage: " );
    wage = input.nextDouble();
    System.out.print( "Enter the number of hours worked: " );
    hours = input.nextInt();
    pay = wage * hours;


    System.out.printf( "\n\nName: %s\nWage: $%.2f\nHours worked: %d\nPay: $%.2f\n", name, wage, hours, pay );

    System.out.print( "Enter the employee's name: " );
    name = input.nextLine();
    }
    }
    }


  2. #2
    Super Moderator pbrockway2's Avatar
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    Default Re: sentinal not working

    It's customary in cases like this to ask: what does "does not work" mean?

    It's not that I mean to be smart or deliberately obtuse, but you are trying to hunt down a bug and you'll need to be sharp. Precisely describing the problem is one way to sharpen your mind.

    Anyway you can get a better idea of what is going on (and be able to better describe it) by adding some debugging output so you can see what the computer sees:

    while (name.compareTo("stop") != 0 )
    {
        System.out.print( "Enter the employee's wage: " ); 
        wage = input.nextDouble(); 
        System.out.print( "Enter the number of hours worked: " ); 
        hours = input.nextInt(); 
        pay = wage * hours; 
     
        System.out.printf( "\n\nName: %s\nWage: $%.2f\nHours worked: %d\nPay: $%.2f\n", name, wage, hours, pay );
     
        System.out.print( "Enter the employee's name: " ); 
        name = input.nextLine();
        System.out.println("The name read from the input stream was -->" + name + "<--"); 
    }
    Last edited by pbrockway2; February 24th, 2012 at 10:52 PM. Reason: typos

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