Where do I need to fix this?

Question

The assignment was:
Create a non-GUI based Java application that calculates weekly pay for an employee. The application should display text that requests the user input the name of the employee, the hourly rate, and the number of hours worked for that week. The application should then print out the name of the employee and the weekly pay amount. In the printout, display the dollar symbol ($) to the left of the weekly pay amount and format the weekly pay amount to display currency. The Payroll Program application should continue to request employee information until the user enters stop as the employee name. In addition, program the application to check that the hourly rate and number of hours worked are positive numbers. If either the hourly rate or the number of hours worked is not a positive value, the application should prompt the user to enter a positive amount.
I did the assignment but my instructor told me:
"I’m sorry to say there were a number of problems with your program this week. To start, your program compiled and run, but it hung instantly. This was due to an incorrect semi-colon that was in place after the while statement. I had a tough time tracking that one down! Once I did, your program ran as expected...
...You did have one issue with your code, and this is due to the scanner object. First of all, I moved the creation of the scanner object outside of the while loop. It probably would work just fine to have it in there, but there is no need to recreate the scanner on every single iteration of the loop. This would eat up resources. I didn’t take any points off for this, just wanted to point it out so you would know in the future.
The main problem is when you read in numbers and don’t get the end line then your program goes through to the next statement in the loop and finds that there is still an endline character out there, so you don’t get to put anything in, and it prints out the next ‘please enter …’ line.
To fix this, add a statement
Input.nextLine() at the end of your else statement inside of your while loop. This way it will ‘clear the buffer.’
Here is the output I got when running your program and making fixes along the way. The line that says
TEST
Was something I added just to make sure I was getting to a specific place...."
I already was graded on the project but I want to know where this fix needs to be done. Here is the code:
// Payroll program2 created by Michelle Groves
// Last edited April03 09
import java.util.Scanner; // program uses Scanner
public class PayrollProgram2
// main method begins program execution
public static void main( String args[] )
System.out.println( "Welcome to the Payroll Program!" );
boolean stop = false; // loop until user enters stop
while (!stop);
// create scanner to obtain input from command window
Scanner input = new Scanner( System.in );
System.out.println();
System.out.println( "Please enter employee's name:" );
String employeeName = input.nextLine(); // employee name
if ( employeeName.equals ( "stop" ) )
System.out.println( "End of program" ); // stop ends program
stop = true;
else
double hourlyRate;
double hoursWorked;
System.out.println( "Please enter hourly pay:" );
hourlyRate = input.nextDouble();
while ( hourlyRate <= 0 ) // loop until positive number entered
System.out.print( "Hourly rate must be a positive number. " +
"Please enter the hourly pay: " ); // prompt for positive number
hourlyRate = input.nextDouble();
System.out.println( "Please enter hours worked:" );
hoursWorked = input.nextDouble();
while (hoursWorked <= 0) // loop until positive number entered
System.out.print( "Hours worked must be a positive number. " +
"Please enter hours worked: " );
hoursWorked = input.nextDouble();
double employeePay = hourlyRate * hoursWorked; // calculate weeks pay
System.out.printf( "This weeks pay for %s is $%.2f",
employeeName, employeePay );
// Display ending message:
System.out.println( "End of program" );
System.out.println();
} // end method
} // end class

Answer 1

This is my code again, just a little more readable:
// Payroll program2 created by Michelle Groves
// Last edited April03 09
import java.util.Scanner; // program uses Scanner
public class PayrollProgram2
// main method begins program execution
public static void main( String args[] )
System.out.println( "Welcome to the Payroll Program!" );
boolean stop = false; // loop until user enters stop
while (!stop);
// create scanner to obtain input from command window
Scanner input = new Scanner( System.in );
System.out.println();
System.out.println( "Please enter employee's name:" );
String employeeName = input.nextLine(); // employee name
if ( employeeName.equals ( "stop" ) )
System.out.println( "End of program" ); // stop ends program
stop = true;
else
double hourlyRate;
double hoursWorked;
System.out.println( "Please enter hourly pay:" );
hourlyRate = input.nextDouble();
while ( hourlyRate <= 0 ) // loop until positive number entered
System.out.print( "Hourly rate must be a positive number. " +
"Please enter the hourly pay: " ); // prompt for positive number
hourlyRate = input.nextDouble();
System.out.println( "Please enter hours worked:" );
hoursWorked = input.nextDouble();
while (hoursWorked <= 0) // loop until positive number entered
System.out.print( "Hours worked must be a positive number. " +
"Please enter hours worked: " );
hoursWorked = input.nextDouble();
double employeePay = hourlyRate * hoursWorked; // calculate weeks pay
System.out.printf( "This weeks pay for %s is $%.2f",
employeeName, employeePay );
// Display ending message:
System.out.println( "End of program" );
System.out.println();
} // end method
} // end class