java - 如何在 Android 的 switch case 中使用 String[] 输入？

如何在 switch case 中使用字符串数组的输入？

String[] mon=new String[]{"January","February","March","April","May","June","July","August","September","October","November","December"};

switch (mon)
{
    case "January":
        m=1;
        break;
    case "February":
        m=1;
        break;
}

最佳答案

Java(版本 7 之前)不支持 switch 情况下的 String。但是您可以通过使用 enum 来获得所需的结果。

private enum Mon {
   January,February,March,April,May,June,July,August,September,October,November,December
};

String value; // assume input
Mon mon = Mon.valueOf(value); // surround with try/catch

switch(mon) {
    case January:
        m=1;
        break;
    case February:
        m2;
        break;
    // etc...
}

请参阅 here 了解更多信息