第二章第二十二题（金融应用：货币单位）(Financial application: monetary units)
*2.22（金融应用：货币单位）改写程序清单2-10，解决将double型值转换为int型值可能会造成精度损失问题。以整数值作为输入，其最后两位代表的是美分币值。例如：1156就表示的是11美元56美分。 *2.22(Financial application: monetary units) Rewrite Listing 2.10, ComputeChange. java, to fix the possible loss of accuracy when converting a double value to an int value. Enter the input as an integer whose last two digits represent the cents. For example, the input 1156 represents 11 dollars and 56 cents.参考代码：
package chapter02;
import java.util.Scanner;
public class Code_22 {
public static void main(String[] args) {
Scanner Input = new Scanner(System.in);
System.out.print("Enter an amount in Int,for example 1156:");
int amount = Input.nextInt();
int remainingAmount = amount;
int numberOfOneDollars = remainingAmount / 100;
remainingAmount %= 100;
int numberOfQuarters = remainingAmount / 25;
remainingAmount %= 25;
int numberOfDimes = remainingAmount / 10;
remainingAmount %= 10;
int numberOfNickels = remainingAmount / 5;
remainingAmount %= 5;
int numberOfPennies = remainingAmount;
System.out.println("Your amount " + amount + " consists of");
System.out.println(" " + numberOfOneDollars + " dollars");
System.out.println(" " + numberOfQuarters + " quarters");
System.out.println(" " + numberOfDimes + " dimes");
System.out.println(" " + numberOfNickels + " nickels");
System.out.println(" " + numberOfPennies + " pennies");
Input.close();
}
}
结果显示：
Enter an amount in Int,for example 1156:1156
Your amount 1156 consists of
11 dollars
2 quarters
0 dimes
1 nickels
1 pennies
Process finished with exit code 0
Processed:
0.013, SQL:
8
