Java更改計算器輸出

Question

我正在寫一個代碼，從標準輸入中讀取一個實數作爲double，然後獲取該值並打印出最少數量的帳單並投入所需的金額。我不確定如何在必要時將代碼打印出來並將複數數量的數字打印出來。如果有人能聽到我會很感激！

import java.util.Scanner; 
import java.lang.Math; 
public class Changecalc { 
public static void main(String[] args) { 
    Scanner input = new Scanner(System.in); 
    System.out.println("Enter amount) "); 
    double amount = input.nextDouble(); 
    int amountInt = (int) (amount * 100); 

    double tmp; 
    if(amount >= 100) 
     { 
     tmp = (int) amount/100; 
     System.out.println (tmp + "$100 bills"); 
     amount = amount % 100; 
     } 
    if(amount >= 50) 
     { 
     tmp = (int) amount/50; 
     System.out.println (tmp + "$50 bills"); 
     amount = amount % 50; 
     } 
    if(amount >= 20) 
    { 
     tmp = (int) amount/50; 
     System.out.println (tmp + "$20 bills"); 
     amount = amount % 20; 
    } 
    if(amount >= 10) 
    { 
     tmp= (int) amount/50; 
     System.out.println (tmp + "$10 bills"); 
     amount = amount % 10; 
    } 
    if(amount >= 5) 
    { 
     tmp = (int) amount/5; 
     System.out.println (tmp + "$5 bills"); 
     amount = amount % 5; 
    } 
    if(amount >= 1) 
    { 
     tmp = (int) amount/1; 
     System.out.println (tmp + "$1 bills"); 
     amount = amount % 1; 
    } 
    if(amount >= .25) 
    { 
     tmp = (int) amount/.25; 
     System.out.println (tmp + "quater"); 
     amount = amount % .25; 
    } 
    if(amount >= .10) 
    { 
     tmp = (int) amount/.10; 
     System.out.println (tmp + "dime"); 
     amount = amount % .10; 
    } 
    if(amount >= .05) 
    { 
     tmp = (int) amount/.05; 
     System.out.println (tmp + "nickel"); 
     amount = amount % .05; 
    } 
    if(amount >= .01) 
    { 
     tmp = (int) amount/.01; 
     System.out.println (tmp + "penny"); 
     amount = amount % 01; 
    } 
} 
} 

Answer 1

您的代碼大部分都是正確的。它只是在量> = 20，那麼你有

if(amount >= 20) 
{ 
    tmp = (int) amount/50; 
    System.out.println (tmp + "$20 bills"); 
    amount = amount % 20; 
} 

相反，它應該是

if(amount >= 20) 
{ 
    tmp = (int) amount/20; 
    System.out.println (tmp + "$20 bills"); 
    amount = amount % 20; 
} 

類似問題時量> = 10。您需要將其更正爲 。

除了這個，你需要有邏輯印刷紙幣（在多張鈔票的情況下），並具有類似的邏輯四（S），硬幣（S），鎳（S）&便士/便士

---

對於pluralising可以使用類似的東西以下

if(amount >= 100){ 
    tmp = (int) amount/100;   
    if(tmp > 1.0){ 
     System.out.println (tmp + "$100 bills"); 
    } else{ 
     System.out.println (tmp + "$100 bill"); 
    } 
    amount = amount % 100; 
} 

Answer 2

您正在使用錯誤的迪遮陽板。使用合適的一個，如：

if(amount >= 20) 
{ 
    tmp = (int) amount/20; 
    System.out.println (tmp + "$20 bills"); 
    amount = amount % 20; 
} 
if(amount >= 10) 
{ 
    tmp= (int) amount/10; 
    System.out.println (tmp + "$10 bills"); 
    amount = amount % 10; 
} 

，而不是這樣的：

tmp = (int) amount/50; 

這裏是您可以在您的格式做打印結果：

double tmp; 
      String result = "Amount: "; 

      if(amount >= 100) 
      { 
       tmp = (int) amount/100; 
       result = result + (int)tmp + "$100 bills "; 
       amount = amount % 100; 
      } 
      if(amount >= 50) 
      { 
       tmp = (int) amount/50; 
       result = result + (int)tmp + "$50 bills "; 
       amount = amount % 50; 
      } 
      if(amount >= 20) 
      { 
       tmp = (int) amount/20; 
       result = result + (int)tmp + "$20 bills "; 
       amount = amount % 20; 
      } 
      if(amount >= 10) 
      { 
       tmp= (int) amount/10; 
       result = result + (int)tmp + "$10 bills "; 
       amount = amount % 10; 
      } 
      if(amount >= 5) 
      { 
       tmp = (int) amount/5; 
       result = result + (int)tmp + "$5 bills "; 
       amount = amount % 5; 
      } 
      if(amount >= 1) 
      { 
       tmp = (int) amount/1; 
       result = result + (int)tmp + "$1 bills "; 
       amount = amount % 1; 
      } 
      if(amount >= .25) 
      { 
       tmp = (int) amount/.25; 
       result = result + (int)tmp + " qurters "; 
       amount = amount % .25; 
      } 
      if(amount >= .10) 
      { 
       tmp = (int) amount/.10; 
       result = result + (int)tmp + " dimes "; 
       amount = amount % .10; 
      } 
      if(amount >= .05) 
      { 
       tmp = (int) amount/.05; 
       result = result + (int)tmp + " nickels "; 
       amount = amount % .05; 
      } 
      if(amount >= .01) { 
       tmp = (int) amount/.01; 
       result = result + (int)tmp + " penny "; 
       amount = amount % 01; 
      } 
      System.out.println(result); 
     } 

這裏是運行示例：

輸入金額）124金額：1 $ 100賬單1 $ 20賬單4 $ 1賬單

您可以根據您的要求做一些細微的修改。

Answer 3

您應該更改代碼邏輯以打印出具有複數特定數量的金額。您可以嘗試下面的代碼，它可能會幫助你

import java.util.Scanner; 
import java.lang.Math; 
class Changecalc { 
public static void main(String[] args) { 
    Scanner input = new Scanner(System.in); 
    System.out.println("Enter amount) "); 
    double amount = input.nextDouble(); 
    int amountInt = (int) (amount * 100); 

    double tmp; 
    if(amount >= 100) 
     { 
     tmp = (int) amount/100; 
     System.out.println (tmp + "$100 bills"); 
     amount = amount % 100; 
     } 
    if(amount >= 50) 
     { 
     tmp = (int) amount/50; 
     System.out.println (tmp + "$50 bills"); 
     amount = amount % 50; 
     } 
    if(amount >= 20) 
    { 
     tmp = (int) amount/20; 
     System.out.println (tmp + "$20 bills"); 
     amount = amount % 20; 
    } 
    if(amount >= 10) 
    { 
     tmp= (int) amount/10; 
     System.out.println (tmp + "$10 bills"); 
     amount = amount % 10; 
    } 
    if(amount >= 5) 
    { 
     tmp = (int) amount/5; 
     System.out.println (tmp + "$5 bills"); 
     amount = amount % 5; 
    } 
    if(amount >= 1) 
    { 
     tmp = (int) amount/1; 
     System.out.println (tmp + "$1 bills"); 
     amount = amount % 1; 
    } 
    if(amount >= .25) 
    { 
     tmp = (int) amount/.25; 
     System.out.println (tmp + "quater"); 
     amount = amount % .25; 
    } 
    if(amount >= .10) 
    { 
     tmp = (int) amount/.10; 
     System.out.println (tmp + "dime"); 
     amount = amount % .10; 
    } 
    if(amount >= .05) 
    { 
     tmp = (int) amount/.05; 
     System.out.println (tmp + "nickel"); 
     amount = amount % .05; 
    } 
    if(amount >= .01) 
    { 
     tmp = (int) amount/.01; 
     System.out.println (tmp + "penny"); 
     amount = amount % .01; 
    } 
} 
}