如何在Java中使用SWITCH CASE语句中的函数/方法

Question

我有三种类型的数组： ControlType ControlName ControlValue

当控件类型为“ClickButton”时，我必须传递相应的ControlName和ControlValue

代码：

public class StringSwitchDemo extends StringSwitchDemoHelper
{
    public static int getMonthNumber(String ControlType) {
        int ControlValue = 0;
        int ControlName  = 0;

        if (ControlType == null) {
            return ControlValue;
        }

        switch (ControlType.toString()) {
            case ClickButton:
                return ControlType(ControlValue, ControlName);
                break;
        }

        return ControlValue;
    }

    private static int ControlType(String controlValue, String controlName) {
        // TODO Auto-generated method stub

        return 0;
    }
}

Answer 1

在switch语句中只能使用常量（最终变量）和文本

public static final String MY_CONST = "foo";

public static int getMonthNumber(String ControlType) {
    int ControlValue = 0;
    int ControlName  = 0;

    if (ControlType == null) {
        return ControlValue;
    }

    switch (ControlType) {
        case MY_CONST: // this will work
            break;
        case "ClickButton":
            return ControlType(ControlValue, ControlName);
    }

    return ControlValue;
}

private static int ControlType(int controlValue, int controlName) {
    // TODO Auto-generated method stub

    return 0;
}

另外，请阅读Java的naming conventions