numgenerator.java~27~

一个用J2ME开发的电子词典

package org.zblog.zenghelper.dbtool;

/**
 * <p>Title: ZEngHelper</p>
 *
 * <p>Description: Z英汉词典</p>
 *
 * <p>Copyright: Zcw Copyright (c) 2004</p>
 *
 * <p>Company: www.zblog.org Z动力</p>
 *
 * @author 朱传伟-ZCW
 * @version 1.0
 */
public class NumGenerator {
    private DbTool dt=null;
    private static NumGenerator ng=null;
    private NumGenerator(){
        dt=DbTool.getInstance();
    }

    public synchronized static NumGenerator getInstance(){
        if(ng==null)
            ng=new NumGenerator();
        return ng;
    }

    /**
     * <br>En编号范围为：0--26*26-1=675
     * <br>Cn编号范围为：0--999
     * @param cnWord String
     * @return int
     */
    public int getWordNum(String word,boolean en){
        word=word.toLowerCase();
        String ts=null;
        char c=word.charAt(0);
        if(en){
            int d=0;
            if(word.length()>1){
                d=word.charAt(1)-'a';
            }
            d=(c-'a')*26+d;
            if(d>675){
                ts=""+d;
                d=Integer.parseInt(ts.substring(ts.length()-2));
            }
            return d;
        }
        else{
            if(c>999){
                ts=""+(c+0);
                c=Integer.parseInt(ts.substring(ts.length()-3)));
            }
            return c;
        }
        return Integer.parseInt(ts.substring(ts.length() - 3))+dt.cnFirstId;
    }

}