complete_3.java

程序练习中包括书中实例程序代码和练习中要用到的代码,是压缩文件

package questions.i18n;

import java.text.NumberFormat;
import java.util.Locale;

public class Complete_3 {

   public static double calcDiscount(
                double origPrice, double newPrice ) {
      return (origPrice - newPrice) / origPrice;
   }

   public static void main( String[] args ) {
      double discount = calcDiscount( 34.99, 29.99 );
      System.out.println( "The discount is "
                          + discount*100 + "%" );
   }
}