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我正在编写一个将公里转换为英里的 java 程序。我的代码是：

public class Ex7Program {
public void start() {
   String userKilometres;
    double kilometres = getKilometresFromUser(); 
    double miles = convertKilometresToMiles(kilometres);
    printResult(kilometres, miles);
}
private double getKilometresFromUser() { // Insert your 3 methods here.
    System.out.print("Enter kilometres: ");
    String userKilometres = Keyboard.readInput();
    double kilometres = Double.parseDouble(userKilometres);

    return kilometres;

}
private double convertKilometresToMiles(double kilometres) {
    double miles = 0.621371 * kilometres;

    return miles;
}

private void printResult(double kilometes, double miles) {
    System.out.print(kilometres + " Kilometres is " + miles + " miles ");
}
}

我在打印结果的最后一条语句中遇到错误，它说：

Error: kilometres cannot be resolved to a variable

我花了很长时间尝试修复它，经过多次失败尝试后我决定来这里。有什么建议我哪里出错了吗？帮助将不胜感激。

4

2 回答 2

7

您的 printResult(double, double) 方法参数称为公里，您需要将其重命名为公里。

于 2013-06-01T07:33:37.413 回答
3

有一个错字。在参数中它是 kilometes，在你里面写kilometres

将其更改为kilometres在两个地方。

private void printResult(double kilometres, double miles) {
    System.out.print(kilometres+ " Kilometres is " + miles + " miles ");
    -------------------^
}
于 2013-06-01T07:35:01.443 回答