java - 我可以将枚举键映射到枚举值吗？

Question

我有 2 个枚举(模块、UniqueChars)

模块拥有所有 key

UniqueChars 具有所有值。

如何使用 HashMap 或 EnumMap 映射这些？

首先，是否可以从 2 个单独的枚举中读取键和值？

public enum modules {
    MODULE("MTREE, VTL_POOL, VTL_ACCESS, SNAPSHOT, NFS_EXPORT, CIFS_SHARE, REPORTS, LOCAL_USERS ");

    private String validModules;

    private modules(String validModules) {
        this.validModules= validModules;
    }
}

public enum UniqueChars {
    LOWER_CASE_LETTERS("abcdefghijklmnopqrstuvwxyz"), 
    UPPER_CASE_LETTERS("ABCDEFGHIJKLMNOPQRSTUVWXYZ"), 
    NUMBERS("0123456789"), 
    PUNCTUATION(".-_"), 
    MTREE("*/:<>?\\|"), 
    VTL_POOL("*'?:/\\,"), 
    VTL_ACCESS("*'?:/\\,"),
    SNAPSHOT("`~!@#$%^&*()_+-={}|[]\\:\";'<>?,.'"),
    NFS_EXPORT("_-"),
    CIFS_SHARE("\\/:*?\"<>|+[];,="),
    REPORTS("`~!@#$%^&*()_+-={}|[]\\:\";'<>?,.'"),
    LOCAL_USERS("._-");

    private String validChars;

    private UniqueChars(String validChars) {
        this.validChars = validChars;
    }


    public String getValidChars() {
        return validChars;
    }

    public static String getValidCharStrings(UniqueChars... uniqueChars) {
        StringBuilder validCharsSB = new StringBuilder();
        for (UniqueChars chars : uniqueChars) {
            validCharsSB.append(chars.getValidChars());
        }
        return validCharsSB.toString();
    }
}

Answer 1

是的:

import java.util.*;
enum color {
    r,g,b
}
enum letter {
    a,b,c
}
public class So16659089 {
    public static void main(String[] args) {
        System.out.println(map);
        System.out.println(map2);
    }
    static Map<color,letter> map=new EnumMap<color,letter>(color.class);
    static { // one way
        map.put(color.r,letter.a);
        map.put(color.g,letter.b);
        map.put(color.b,letter.c);
    }
    static Map<color,letter> map2=new EnumMap<color,letter>(color.class);
    static letter[] letters=new letter[]{letter.a,letter.b,letter.c};
    static { // another way
        for(int i=0;i<color.values().length;i++)
            map2.put(color.values()[i],letters[i]);
    }
}