枚举例子，快速上手枚举

public enum WeekTest {
    Monday("星期一","语文"),
    Tuesday("星期二","数学"),

    WEDNESDAY("星期三","英语"),

    THURSDAY("星期四","政治"),

    FRIDAY("星期五","经济学"),

    SATURDAY("星期六","金融学"),

    SUNDAY("星期日","放假");

    private String name;
    private String value;
//流式获取value
    public static String getClass(String key){
        WeekTest[]weekTests = values();
        //流式处理
        String s1 = Stream.of(weekTests).filter(s -> {
            return s.getName().equals(key);
        }).map(WeekTest::getValue
        ).collect(Collectors.joining());
        return s1;
    }

//也可以通过遍历获取value

//    public static String getValue(String name) {
//        OrderEnumConfig[] enumConfigs = values();
//        for (OrderEnumConfig enumConfig : enumConfigs) {
//            if (enumConfig.getName().equals(name)) {
//                return enumConfig.getValue();
//            }
//        }
//        return undefinit.getValue();
//    }

    WeekTest() {
    }

    WeekTest(String name, String value) {
        this.name = name;
        this.value = value;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getValue() {
        return value;
    }

    public void setValue(String value) {
        this.value = value;
    }
}

开始测试：

public class GetEnum {
    public static void main(String[] args) {
        String s = WeekTest.getClass("星期一");
        System.out.println(s);
    }
}

超级简单吧？如有帮助，点赞啊，老铁