Enum的基本使用

package enum_test;

public enum Shrubbery {
    GROUND, CRAWLING, HANGING
}

package enum_test;

public class EnumClass {
    public static void main(String[] args) {

        System.out.println(Shrubbery.class);
        // 枚举转成数组
        System.out.println(Shrubbery.values());
        // 遍历枚举的元素
        for (Shrubbery e : Shrubbery.values()) {
            System.out.println(e);
            // 元素的位置
            System.out.println(e + ".ordinal():	" + e.ordinal());
            // 比较元素位置
            System.out.println(e + ".compareTo(Shrubbery.CRAWLING):	" + e.compareTo(Shrubbery.CRAWLING));
            // equals
            System.out.println(e + ".equals(Shrubbery.GROUND):	" + e.equals(Shrubbery.GROUND));
            // ==
            System.out.println(e + " == (Shrubbery.GROUND):	" + (e == Shrubbery.CRAWLING));
            // 结果等同于.class
            System.out.println(e + ".getDeclaringClass():	" + e.getDeclaringClass());
            System.out.println(e + ".name():	" + e.name());
            System.out.println("---------------------");
        }

    }

}