Java - 将用户输入分配给变量/更改计数器
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Java - Assigning User Input to Variable / Change Counter
提问by user2665348
I'm quite new to java, although I have a fairly basic knowledge of C++.
For my assignment I am counting change and sorting it into American currency (i.e., if you had 105 cents, it would divide it into one dollar and one dime).
Logically I understand how to do this, but I'm having some serious trouble understanding the java syntax. I'm having serious trouble to find a way to assign a user-inputted value to a variable of my creation. In C++ you would simply use cin, but Java seems to be a lot more complicated in this regard.
尽管我对 C++ 有相当基本的了解，但我对 Java 还是很陌生。对于我的作业，我计算零钱并将其分类为美国货币（即，如果您有 105 美分，它将分为一美元和一角硬币）。
从逻辑上讲，我明白如何做到这一点，但我在理解 java 语法时遇到了一些严重的问题。我很难找到一种方法来将用户输入的值分配给我创建的变量。在 C++ 中，您可以简单地使用 cin，但 Java 在这方面似乎要复杂得多。
Here is my code so far:
到目前为止，这是我的代码：
package coinCounter;
import KeyboardPackage.Keyboard;
import java.util.Scanner;
public class helloworld
{
public static void main(String[] args)
{
Scanner input new Scanner(System.in);
//entire value of money, to be split into dollars, quarters, etc.
int money = input.nextInt();
int dollars = 0, quarters = 0, dimes = 0, nickels = 0;
//asks for the amount of money
System.out.println("Enter the amount of money in cents.");
//checking for dollars, and leaving the change
if(money >= 100)
{
dollars = money / 100;
money = money % 100;
}
//taking the remainder, and sorting it into dimes, nickels, and pennies
else if(money > 0)
{
quarters = money / 25;
money = money % 25;
dimes = money / 10;
money = money % 10;
nickels = money / 5;
money = money % 5;
}
//result
System.out.println("Dollars: " + dollars + ", Quarters: " + quarters + ", Dimes: " + dimes + ", Nickels: " + nickels + ", Pennies: " + money);
}
}
I would really appreciate some help with how to assign a user-input to my variable, Money. However, if you see another error in the code, feel free to point it out.
我非常感谢有关如何将用户输入分配给我的变量 Money 的帮助。但是，如果您在代码中看到另一个错误，请随时指出。
I know this is really basic stuff, so I appreciate all of your cooperation.
我知道这是非常基本的东西，所以我感谢你们的合作。
回答by Charaf JRA
Change this line :
改变这一行：
Scanner input new Scanner(System.in);
To :
到 ：
Scanner input = new Scanner(System.in);
And this should be after line below not before:
这应该在下面的行之后而不是之前：
System.out.println("Enter the amount of money in cents.");
And as you did , the line below will read from input intvalue and assign it to your variable money :
正如您所做的那样，下面的行将从输入int值中读取并将其分配给您的变量 money ：
int money = input.nextInt();
