wm: java

ref: c38e733d9de9f416af3f1e629bc351c4723e2425
dir: /Bookproj/Books.java/

package Bookproj;

import java.util.HashMap;
import java.util.TreeMap;

public class Books {
    HashMap<BookAttr, String> Book = new HashMap<BookAttr, String>();
    HashMap<String, HashMap> Booklist = new HashMap<String, HashMap>();

    HashMap<String, TreeMap> Mkbl(HashMap<String, Book> bl) {
        HashMap<String, TreeMap> list = new HashMap<String, TreeMap>();
        for (Book i : bl.values()) {
            list.put(i.getISBN(), i.toMap());
        }
        return list;
    }
}