// This file contains excerpts from the textbook Concrete
// Abstractions: An Introduction to Computer Science Using Scheme, by
// Max Hailperin, Barbara Kaiser, and Karl Knight, Copyright (c) 1998
// by the authors. Full text is available for free at
// http://www.gustavus.edu/+max/concrete-abstractions.html

public class InterestRateField extends FormattedField {
  public InterestRateField(double initialValue, CompoundingThread ct){
    super(6, java.text.NumberFormat.getPercentInstance());
    compThread = ct;
    Double value = new Double(initialValue);
    setValue(value);
    valueEntered(value);
  }

  private CompoundingThread compThread;

  public void valueEntered(Object value){
    compThread.setInterestRate(((Number) value).doubleValue());
  }
}