Question

我这里有一些代码，它需要一个双倍金额作为美元金额并输出它包含的硬币数量。我一直试图让它执行＆＃34; 1.69＆＃34;正确地长时间，用一个荒谬的括号来确保它有效;但是，输出永远不会正确。目前，如下所示，输出为6个季度，1个角钱，1个镍币和3个便士，即＆＃34; 1.68，＆＃34;而我无法为我的生活找出原因。有任何想法吗？谢谢。

ChangeJar2(final double _amount_){

    quarters = (int) (_amount_/.25);// Computes # of quarters
    dimes = (int) ((_amount_-(quarters*(.25)))/.1);// Computes # of dimes
    nickles = (int) ((_amount_-(quarters*(.25))-(dimes*.1))/.05);// Computes # of nickles
    pennies = (int) ((_amount_-(quarters*(.25))-(dimes*(.1))-(nickles*(.05)))/.01);// Computes # of pennies

    System.out.println(quarters + " " + dimes + " " + nickles + " " + pennies);


}// End of ChangeJar(final double _amount_) Constructor

错误的输出美元金额到硬币

0 个答案: