Ok, let me be more specific. The loop iterations must be five only and end
without a sentinel even though right now I have included a sentinel. Plus, I
cannot use a break.
So I was not able to see a syntax that would accomplish this (that's why I
threw in the sentinel)
Synopsis of the app (I have also included the source of the class with the
loop):
* prompt for each of 7 different inputs
* once they are input, display the results including a product of two of the
inputs
* return and begin a new prompt all over.
public class AddBook // Modified to include requirement of positive num
entry for donations (amount of and number of)
{
// main method begins execution of java application
public static void main( String args[] )
{
ArrayList persons = new ArrayList(); // Array to handle multiple
entries of persons
boolean stop = false; // This flag will control whether we exit the loop
below
// Loop until user types "stop" as the person's name:
while (!stop)
{
// create scanner to obtain input from command window
Scanner input = new Scanner ( System.in );
System.out.println(); // a blank line
System.out.print( "Please enter the persons name (First Last) or
'stop' to end program: " ); // prompt
String perName = input.nextLine(); // read persons name
if ( perName.compareTo("stop") == 0) // Check whether user indicated to
stop program
{
System.out.println( "Program ended." );
stop = true;
}
else
{
// User did not indicate to stop, so continue reading info
PersonData person;
float donationNum; // first number, number of donations for the year
float donationAmount; // second number, amount per donation (yeah I
know it doesn't allow for different amounts).
String Address;
String City;
String State;
System.out.print ( "Please enter the person's Address: " );
Address = input.nextLine(); // Address validation and exception catch
needed
System.out.print ( "Please enter the person's City: " );
City = input.nextLine(); // City validation needed
System.out.print ( "Please enter the person's State: " );
State = input.nextLine(); // Validation for State needed
String zip = "12345";
//String zipCodePattern = "\\d{5}";
System.out.print ( "Please enter the person's Zip in five number format
(88388): " );
zip = input.nextLine();
//while (zip != zipCodePattern) // my attempt at a zip validation, gave
me an infinite loop, will try again later
// {
// System.out.print( "The Zip code must be entered in the correct
format. " +
// "Please enter the Zip Code again: "); // Ask for correct
Zip entry
// System.out.println(zip.
matches(zipCodePattern));
// }
System.out.print( "Please enter number of donations: " ); // prompt for
donation number
donationNum = input.nextFloat();
while (donationNum <= 0) // validate for positive number
{
System.out.print( "The number of donations must be a positive value.
" +
"Please enter the number of donations again: " ); // prompt
for positive value for donations
donationNum = input.nextFloat();
}
System.out.print( "Please enter donation amount: $" ); // prompt for
donation amount
donationAmount = input.nextFloat();
while (donationAmount <= 0) // validate for positive amount
{
System.out.print( "The donation amount must be a positive value. " +
"Please enter the donation amount again: " ); // Prompt
again after invalid entry
donationAmount = input.nextFloat();
}
person = new PersonData(perName, donationNum, donationAmount, Address,
City, State, zip); // fields included in our person entries
//yearlyDonations = donationNum * donationAmount; // multiply
System.out.print( person.getName() ); // display person's name
System.out.println(); // my way (until I learn better) of formatting
the output to single lines from here down ->
System.out.print( person.getAddress() );
System.out.println();
System.out.print( person.getCity() );
System.out.println();
System.out.print( person.getState() );
System.out.printf( ", "); // prob a better way to get a comma
between the state and zip... I'm learning
System.out.print( person.getZip() );
System.out.println();
System.out.print( person.getName() );
System.out.printf( "'s yearly donations is: $%,.2f\n",
person.getYearlyDonations() ); // display yearly donations
persons.add(person);
}
}
} // end method main
} // end class AddBook
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