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- // SuperMarket.java - This program creates a report that lists weekly hours worked
- // by employees of a supermarket. The report lists total hours for
- // each day of one week.
- // Input: Interactive
- // Output: Report.
- import java.util.Scanner;
- public class SuperMarket
- {
- public static void main(String args[])
- {
- // Declare variables.
- final String HEAD1 = "WEEKLY HOURS WORKED";
- final String DAY_FOOTER = " Day Total "; // Leading spaces are intentional.
- final String SENTINEL = "done"; // Named constant for sentinel value.
- double hoursWorked = 0; // Current record hours.
- String hoursWorkedString = ""; // String version of hours
- String dayOfWeek; // Current record day of week.
- double hoursTotal = 0; // Hours total for a day.
- String prevDay = ""; // Previous day of week.
- boolean done = false; // loop control
- Scanner input = new Scanner(System.in);
- // Print two blank lines.
- System.out.println();
- System.out.println();
- // Print heading.
- System.out.println(HEAD1);
- // Print two blank lines.
- System.out.println();
- System.out.println();
- // Read first record
- System.out.println("Enter day of week or done to quit: ");
- dayOfWeek = input.nextLine();
- if(dayOfWeek.compareTo(SENTINEL) == 0)
- done = true;
- else
- {
- System.out.print("Enter hours worked: ");
- hoursWorkedString = input.nextLine();
- hoursWorked = Integer.parseInt(hoursWorkedString);
- prevDay = dayOfWeek;
- }
- while(done == false)
- {
- System.out.print("Enter day of week or done to quit: ");
- if(dayOfWeek != prevDay)
- System.out.println("\t\t" + DAY_FOOTER + hoursWorked);
- dayOfWeek = input.nextLine();
- if(dayOfWeek == SENTINEL)
- done = true;
- else
- {
- System.out.print("Enter hours worked: ");
- hoursWorked = Double.parseDouble(input.nextLine());
- prevDay = dayOfWeek;
- }
- hoursTotal = hoursTotal + hoursWorked;
- }
- System.out.println(DAY_FOOTER + hoursTotal);
- System.exit(0);
- } // End of main() method.
- } // End of SuperMarket class.
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