computechange.java

此源码为机械工业出版社出版的《Java语言程序设计》第三版所配套的书中所有源代码。

// ComputeChange.java: Break down an amount into smaller units
public class ComputeChange
{
  // Main method
  public static void main(String[] args)
  {
    double amount; // Amount entered from the keyboard

    // Receive the amount entered from the keyboard
    System.out.println(
      "Enter an amount in double, for example 11.56");
    amount = MyInput.readDouble();

    int remainingAmount = (int)(amount*100);

    // Find the number of one dollars
    int numOfOneDollars = remainingAmount/100;
    remainingAmount = remainingAmount%100;

    // Find the number of quaters in the remaining amount
    int numOfQuarters = remainingAmount/25;
    remainingAmount = remainingAmount%25;

    // Find the number of dimes in the remaining amount
    int numOfDimes = remainingAmount/10;
    remainingAmount = remainingAmount%10;

    // Find the number of nickels in the remaining amount
    int numOfNickels = remainingAmount/5;
    remainingAmount = remainingAmount%5;

    // Find the number of pennies in the remaining amount
    int numOfPennies = remainingAmount;

    // Display results
    System.out.println("Your amount " + amount + " consists of ");
    System.out.println(numOfOneDollars + "\t dollars");
    System.out.println(numOfQuarters + "\t quarters");
    System.out.println(numOfDimes + "\t dimes");
    System.out.println(numOfNickels + "\t nickels");
    System.out.println(numOfPennies + "\t pennies");
  }
}