判断一个枚举值是否属于某个枚举类详解编程语言

/** 
 * @Description: 控制开关的状态 
 * @since: JDK 1.7 
 * @Version：  V1.0 
 */ 
public enum SwitchStatus { 
    CLOSE(0, "0-关闭"), 
    OPEN(1, "1-开启"); 
 
    private int key; 
    private String value; 
 
    private SwitchStatus(int key, String value) { 
        this.key = key; 
        this.value = value; 
    } 
 
    public int getKey() { 
        return key; 
    } 
 
    public String getValue() { 
        return value; 
    } 
}

public class EnumUtil { 
    /** 
     * 判断数值是否属于枚举类的值 
     * @param key 
     * @return 
     */ 
    public static boolean isInclude(int key){ 
        boolean include = false; 
        for (SwitchStatus e: SwitchStatus.values()){ 
            if(e.getKey()==key){ 
                include = true; 
                break; 
            } 
        } 
        return include; 
    } 
}

public class TestMain { 
    public static void main(String[]args){ 
        System.out.println(EnumUtil.isInclude(0)); 
        System.out.println(EnumUtil.isInclude(1)); 
        System.out.println(EnumUtil.isInclude(2)); 
    } 
}