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class Currency {
  // total amount requested (required)
  private int dollars = -1; // initialize to default value
  private int cents = -1; // initialize to default value
  // change requested, denomination (optional)
  private int quarters = 0;
  private int dimes = 0;
  private int nickels = 0;
  private int pennies = 0;
  public Currency() {} // no argument constructor

  // setter methods 
  public Currency setDollar(int amount) { 
    dollars = amount;
    return this;
  }

  public Currency setCents(int amount) { 
    cents = amount;
    return this; 
  }

  public Currency setQuarters(int quantity) { 
    quarters = quantity; 
    return this;
  } 
  public Currency setDimes(int quantity) { 
    dimes = quantity; 
    return this;
  }
  
  public Currency setNickels(int quantity) { 
    nickels = quantity;
    return this;
  }
  
  public Currency setPennies(int quantity) { 
    pennies = quantity;
    return this;
  }
}

// Client code:
Currency curr = new Currency();
curr.setDollar(10).setCents(50).setQuarters(42);