Java 如何将单词存储到compass程序中的变量中

我需要帮助在变量中存储一个单词，并从指南针程序输出消息。我需要编写一个程序，让用户输入指南针方向，然后打印消息。我不知道为什么它不输出方向，我需要把整数转换成字符串吗/

样本输出：

Input compass direction(Eg.S45E):
S45E
Start facing South.Turn 45 degrees towards East.

代码：

---

最好的方法可能是一次循环输入字符串一个字符，但使用开关块而不是无数的if语句：

String direction = "";
String word2 = br.ReadLine();
foreach (char c in word2.toCharArray();
{
  switch (c)
  {
    case 'N':
      direction = "North";
      break;
    case 'S':
      direction = "South";
      break;
    ... // Do the rest here
  }
}

---

该示例需要针对多个方向（NE、NW-SW、NNE等）进行调整，但这应该提供一个更可行的起点。

如果将问题分解为多个部分，事情会简单得多，例如-

// Convert the character representing a direction, into a cardinal direction.
private static String getDirection(char direction) {
  if (direction == 'N' || direction == 'n') {
    return "North";
  } else if (direction == 'S' || direction == 's') {
    return "South";
  } else if (direction == 'E' || direction == 'e') {
    return "East";
  } else if (direction == 'W' || direction == 'w') {
    return "West";
  }
  return "Unknown";
}

public static void main(String[] args)
    throws InterruptedException {
  // Construct a scanner.
  Scanner scanner = new Scanner(System.in);

  // The output message format.
  String fmt = "Start facing %s.Turn %s degrees towards %s.";
  // Loop forever.
  for (;;) {
    // Print directions.
    System.out.println("Compass Directions");
    System.out.println("==================");
    System.out.println("Input a compass direction "
        + "(E.g. S45E):");
    // Check that System.in hasn't been closed.
    if (!scanner.hasNextLine()) {
      break;
    }
    // Get input.
    String line = scanner.nextLine();
    String start = getDirection(line.charAt(0));
    String end = getDirection(line.charAt(line
        .length() - 1));
    String msg = String.format(fmt, start,
        line.substring(1, line.length() - 1), end);
    System.out.println(msg);
  }
}

---

请提供一个最小工作示例（MWE）来演示您的问题。请格式化您的代码并使其可编译…我编译了它。感谢您的帮助

// Convert the character representing a direction, into a cardinal direction.
private static String getDirection(char direction) {
  if (direction == 'N' || direction == 'n') {
    return "North";
  } else if (direction == 'S' || direction == 's') {
    return "South";
  } else if (direction == 'E' || direction == 'e') {
    return "East";
  } else if (direction == 'W' || direction == 'w') {
    return "West";
  }
  return "Unknown";
}

public static void main(String[] args)
    throws InterruptedException {
  // Construct a scanner.
  Scanner scanner = new Scanner(System.in);

  // The output message format.
  String fmt = "Start facing %s.Turn %s degrees towards %s.";
  // Loop forever.
  for (;;) {
    // Print directions.
    System.out.println("Compass Directions");
    System.out.println("==================");
    System.out.println("Input a compass direction "
        + "(E.g. S45E):");
    // Check that System.in hasn't been closed.
    if (!scanner.hasNextLine()) {
      break;
    }
    // Get input.
    String line = scanner.nextLine();
    String start = getDirection(line.charAt(0));
    String end = getDirection(line.charAt(line
        .length() - 1));
    String msg = String.format(fmt, start,
        line.substring(1, line.length() - 1), end);
    System.out.println(msg);
  }
}