Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 Copyright 2008,
 CCTC - Computer Science and Technology Center
 IBB-DEB - Institute for Biotechnology and  Bioengineering - Department of Biological Engineering
 University of Minho
    
 This is free software: you can redistribute it and/or modify
 it under the terms of the GNU Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.
    
 This code 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 Public License for more details.
    
 You should have received a copy of the GNU Public License
 along with this code.  If not, see <http://www.gnu.org/licenses/>.
    
 Created inside the SysBio Research Group (http://sysbio.di.uminho.pt)
 University of Minho
 */

public class Main {
    public static boolean isNumber(String s) {
        boolean pointcanappear = true;
        boolean signcanappear = true;
        boolean res = true;
        int i = 0;

        if (s.length() == 0)
            res = false;
        while (i < s.length() && res) {
            char c = s.charAt(i);
            boolean ok = false;
            if (Character.isWhitespace(c))
                ok = true;
            else if (Character.isDigit(c)) {
                if (signcanappear)
                    signcanappear = false;
                ok = true;
            } else if (c == '-' && signcanappear) {
                signcanappear = false;
                ok = true;
            } else if ((c == '.' || c == ',') && pointcanappear) {
                pointcanappear = false;
                ok = true;
            }
            if (ok)
                i++;
            else
                res = false;
        }
        return res;
    }
}