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Java 如何将if-else具有布尔条件转换为switch?_Java_If Statement_Switch Statement - Fatal编程技术网

Java 如何将if-else具有布尔条件转换为switch?

Java 如何将if-else具有布尔条件转换为switch?,java,if-statement,switch-statement,Java,If Statement,Switch Statement,我想将下面的if-else循环转换为我想转换布尔条件的开关情况 public String getRandomValues(WebElement input) { String value; if (input.getAttribute("id").equalsIgnoreCase("FIRSTNAME")) { value = "User"; } else if (input.getAttribute("id").equa

我想将下面的if-else循环转换为我想转换布尔条件的开关情况

public String getRandomValues(WebElement input) {
        String value;
        if (input.getAttribute("id").equalsIgnoreCase("FIRSTNAME")) {
            value = "User";
        } else if (input.getAttribute("id").equalsIgnoreCase("LASTNAME")) {
            value = "Name";
        } else if (input.getAttribute("id").equalsIgnoreCase("ACCOUNTNUMBER")) {
            value = "0123945486855";
        } else if (input.getAttribute("id").equalsIgnoreCase("EMAIL")) {
            value = "user@domain.com";
        } else if (input.getAttribute("id").equalsIgnoreCase("PHONE")) {
            value = "98287825858";
        } else if (input.getAttribute("id").equalsIgnoreCase("DATE")) {
            DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd");
            value = dateFormat.format(new Date());
        } else {
            value = "Random Value 123";
        }
        return value;
    }
有人能帮忙吗?

您可以这样做:

String id = input.getAttribute("id").toUpperCase();
switch(id) {
    case "FIRSTNAME": 
        // something
        break;
    .....
}

开关接受
字符串作为参数,因此您可以执行以下操作:

switch (input.getAttribute("id").toUpperCase())
{
   case "FIRSTNAME":
       value = "User";
       break;
   case "LASTNAME":
       value = "Name";
       break;

   //and so on

   case "DATE":
   {
      // You need braces to declare a local variable in a case
      DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd");
      value = dateFormat.format(new Date());
      break;
   }
   default: // the same as your 'else'
       value = "Random Value 123";
}

switch(input.getAttribute(“id”).toUpperCase(){case“FIRSTNAME”:…
令人惊讶的是,根据区域设置,所有四个答案(加上此处注释中的答案)都可能会失败。@Patrick:除此之外,我想了解处理诸如……
input.getAttribute(“id”).contains(“PHONE”)等情况的方法
@SameerPatil这不是开关的用途。@Patrick:在这种情况下,除了if-else之外还需要使用什么?要获得不区分区域设置的字符串的正确结果,请使用toUpperCase(locale.ENGLISH)。否则,您将无法通过Turkey测试。如果条件变为“contains”而不是“equalsIgnoreCase”?在这种情况下,您将无法使用switch。
public String getRandomValues(WebElement input) {
        String inputValue = input.getAttribute("id").toUpperCase();
        switch (inputValue) {
            case "FIRSTNAME":
                return "User";

            case "LASTNAME":
                return "Name";

            case "ACCOUNTNUMBER":
                return "0123945486855";

            case "EMAIL":
                return "user@domain.com";

            case "PHONE":
                return "98287825858";

            case "DATE":
                DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd");
                return dateFormat.format(new Date());

            default:
                return "Random Value 123";
        }
    }