如何在java中更改if-else語句以切換case語句

Question

我的問題是如何將 if-else 語句更改為 switch case 語句，我已經做了一些工作，它在 netbean 中包含錯誤：

if(result.length <= 2){
            if ((result[0].equals("UC"))||(result[0].equals("uc"))){
                fix = "UC";
            }
            else if ((result[0].equals("LC"))||(result[0].equals("lc"))){
                fix = "LC";
            }
            else
                fix = "error";  
        }else
            fix = "length";

Answer 1

像這樣嘗試

switch (result[0]) {
    case "UC":
    case "uc":
        fix = "UC";
        break;
    case "LC":
    case "lc":
        fix = "LC";
        break;
    default:
        fix = "error";
}

Answer 2

if(result.length <= 2){
        switch(result[0]){
                      case "UC":
                      case "uc":
                         fix = "UC";
                         break;
                      case "LC":
                      case "lc":
                         fix = "LC";
                         break;
                      default:
                         fix = "error";
                         break;
           }
      }
      else
        fix = "length";

Answer 3

另一種解決方案：

switch (Boolean.toString(result.length <= 2)) {
    case "true":
        switch (result[0]) {
            case "UC":
            case "uc":
                fix = "UC";
                break;
            case "LC":
            case "lc":
                fix = "LC";
                break;
            default:
                fix = "error";
        }
        break;
    default:
        fix = "length";
}

Answer 4

您可以使用以下內容：

 if(result.length <= 2)
    {
        switch(result[0])
        {
            case "UC":
                fix = "UC";
                break;
            case "uc":
                fix = "uc";
                break;
            case "UC":
                 fix = "LC";
                 break;
            case "uc":
                 fix = "lc";
                 break;
            default:
                  fix = "error";
       }
 }
 else
 {
     fix = "length";
 }