我正在尝试将 2 个变量与我的枚举类型进行比较

Question

我创建了一个 Enum wearState，然后将 wearState 作为两个变量的类型。但是，当我尝试使用“||”将它们置于 if 条件下时或'&&'，它不起作用。它说："error : bad operand types for binary operator '||' "

enum wearState {
        WRIST_MOVE,
        WRIST_IMMOBILE,
        BELT_NECK_MOVE,
        BELT_NECK_IMMOBILE,
        OTHER_IMMOBILE_STATE;
    }


enum chargingState {
        YES,
        NO,
    }

wearState lastState;
wearState currentState;
chargingState lastStateCharging;
chargingState currentStateCharging;

if (((currentState = wearState.BELT_NECK_IMMOBILE) || (currentState = wearState.WRIST_IMMOBILE)) && 
    (lastStateCharging = chargingState.NO)) {

              /* .... */
 }

Answer 1

if (((currentState == wearState.BELT_NECK_IMMOBILE) || (currentState == wearState.WRIST_IMMOBILE)) && 
(lastStateCharging == chargingState.NO))

比较两个变量是否请使用“==”, = 是赋值运算符。它只能用于为变量赋值，如

String name="Joe";

要与变量进行比较，我们应该使用比较运算符。 ==,<=,>=,!=,<,> 是比较运算符；

我正在尝试将 2 个变量与我的枚举类型进行比较

I'm trying to compare 2 variables with my enum's type

java

enums

operators

android-studio