public class Ex5 {
  public static void main(String[] args) {
    Expense[] e = {
      new Expense("lodging"),
      new Expense("meals"),
      new Expense("incidentals")
    };
    ReportGenerator.create(e);
  }
}

import java.util.*;
public class Expense {
  private String descrip;
  private double amount;

  public Expense(String descrip) {
    this.descrip = descrip;
    amount       = 0.0;
  }

  public void setAmount(double a) {
    amount = a;
  }

  public void ask(Scanner sc) {
    System.out.print("Enter dollar amount for "
                     + getDescrip()
                     + " (0 for none): ");
    amount = sc.nextDouble();
  }

  public String getDescrip() {
    return descrip;
  }

  public double getAmount() {
    return amount;
  }
}

import java.util.*;
public class ReportGenerator {
  // Query users for amounts of the
  // expense categories listed in
  // array e, and output expense report.
  public static void create(Expense[] e) {
    Scanner sc = new Scanner(System.in);

    for (int i = 0; i < e.length; i++) {
      e[i].ask(sc);
    }

    System.out.println();
    double total = 0.0;

    for (int i = 0; i < e.length; i++) {
      double x = e[i].getAmount();
      double y = Math.floor(x * 100 + 0.5) / 100.0;
      total += y;
      System.out.printf(" $%07.2f\t%s\n", y, e[i].getDescrip());
    }
    System.out.printf("---------\n $%07.2f\ttotal\n", total);
  }
}