Question

我有一个函数，它给出了一个int数组的输出，其总长度为5，其中值为1或0.这里有一些可能的输出示例：

[1, 1, 0, 1, 0] or [0, 0, 1, 0, 1] or [1, 1, 1, 1, 1]

使用它作为输入，我需要在Java中创建一个函数，它将这个int数组与一个字符串数组相关联，其中1表示该字符串将在数组中，0表示它赢得了＃39 ; t在数组中。例如：

[1, 1, 1, 1, 1] => ["Tweet", "Email", "Text", "Phone Call", "Voicemail"]
[0, 1, 1, 0, 1] => ["", "Email", "Text", "",  "Voicemail"]
[0, 0, 0, 0, 0] => ["", "", "", "", ""]

我能想到的就是做这样的事情：

public String[] myFunc(int[] arr) {

  String[] output = [5];

  for (int i = 0; i < arr.length; i++) {
    switch (i) {
      case 0:
        if (arr[i] == 1)
          output[i] = "Tweet";
        else
          output[i] = "";
        break;

      case 1:
        if (arr[i] == 1)
          output[i] = "Email";
        else
          output[i] = "";
        break;

      case 2:
        if (arr[i] == 1)
          output[i] = "Text";
        else
          output[i] = "";
        break;

      case 3:
        if (arr[i] == 1)
          output[i] = "Phone Call";
        else
          output[i] = "";
        break;

      case 4:
        if (arr[i] == 1)
          output[i] = "Voicemail";
        else
          output[i] = "";
        break;
    }
  }
  return output;
}

这是一个非常丑陋的解决方案，我确信通过实现某种对象来映射值可以更好地完成它，但我不太熟悉Java并且会感激任何帮助！

Answer 1

试试这个

    boolean[] booleanArray = new boolean[] { true, false, true, false, true };
    String[] stringArray = new String[] { "Tweet", "Email", "Text", "Phone Call", "Voicemail" };
    String[] stringResult = new String[5];
    for (int i=0;i<booleanArray.length;i++) {
        if (booleanArray[i]) {
            stringResult[i] = stringArray[i];
        } else {
            stringResult[i] = "";
        }
    }

将int数组与Java中的字符串数组相关联

1 个答案: