Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 Protocol Definition Language
 Copyright (C) 2003-2006 Marcus Andersson
    
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2 of the License, or
 (at your option) any later version.
    
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
    
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

public class Main {
    public static int parseDual(String s) {
        if (s.length() < 2 || Character.toLowerCase(s.charAt(s.length() - 1)) != 'd')
            throw new NumberFormatException("not a dual number: " + s);

        if (s.length() > 33)
            throw new NumberFormatException("number has more than 32 digits:" + s);

        int val = 0;
        for (int i = 0; i < s.length() - 1; i++) {
            val = val << 1;
            switch (s.charAt(i)) {
            case '1':
                val |= 1;
                break;
            case '0':
                break;
            default:
                throw new NumberFormatException("not a dual number: " + s);
            }
        }
        return val;
    }
}