Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * @(#)ModelStringUtil.java   
 *
 * Copyright (C) 2006-2011 www.interpss.com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU LESSER GENERAL PUBLIC LICENSE
 * as published by the Free Software Foundation; either version 2.1
 * 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.
 *
 * @Author Mike Zhou
 * @Version 1.0
 * @Date 02/15/2008
 * 
 *   Revision History
 *   ================
 *
 */

public class Main {
    /**
     * convert charters [beginCol, endCol] of the input string to a double. Return 0.0 number if empty. 
     * 
     * @param str input string
     * @param beginCol begin column, starts from 1 ...
     * @param endCol end column
     * @return the number
     */
    public static double getDouble(String str, int beginCol, int endCol) {
        if (str.length() < endCol)
            return 0.0;
        String s = str.substring(beginCol - 1, endCol);
        if (s.trim().equals(""))
            return 0.0;
        else
            return new Double(s.trim()).doubleValue();
    }

    /**
     * convert str to a double. Return defaultValue number if empty. 
     * 
     * @param str input string
     * @return the number
     */
    public static double getDouble(String str, double defaultValue) {
        try {
            return new Double(str.trim()).doubleValue();
        } catch (Exception e) {
            return defaultValue;
        }
    }
}