Java 定义一组固定的相关常数

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import java.util.Arrays;

/* 

 来自 

*时 代 J a v a 公 众 号 - nowjava.com*/

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enum Direction {

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  East, WEST, NORTH, SOUTH

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}

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public class Main {

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    public static void main(String[] args) {

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        Direction field = Direction.WEST;

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        System.out.println("field.name(): " + field.name());

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        System.out.println("field.ordinal(): " + field.ordinal());

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        System.out.println("field.toString(): " + field.toString());

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        System.out.println("field.isEqual(WEST): " + field.equals(Direction.WEST));

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        System.out.println("field.isEqual(\"WEST\"'): " + field.equals("WEST"));

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        System.out.println("field == WEST: " + (field == Direction.WEST));

/* from 时   代     Java  公  众  号 - nowjava.com*/

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        System.out.println("field.compareTo(WEST): " + field.compareTo(Direction.WEST));

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        System.out.println("field.compareTo(PASSWORD): " + field.compareTo(Direction.East));

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