Java Float Number Convert to convertFloat(float amount, boolean speech)

Description

Converts a float to speakable fraction representation

License

Open Source License

Declaration

public static String convertFloat(float amount, boolean speech) 

Method Source Code

//package com.java2s;
/*   This file is part of SpeechCookingAssistant.
 *
 *   SpeechCookingAssistant 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, version 3
 *
 *   SpeechCookingAssistant 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 SpeechCookingAssistant.  If not, see <http://www.gnu.org/licenses/>.  
 * /*w w w  . j  av a 2  s . c om*/
 *   Copyright 2011 Michael Shafir
 *   Michael.Shafir@gmail.com
 */

public class Main {
    public static int[] breakdowns = new int[] { 500, 250, 333, 125 };

    /**
     * Converts a float to speakable fraction representation
     * 
     * @return
     */
    public static String convertFloat(float amount, boolean speech) {
        int num = (int) amount;
        String start = Integer.toString(num);
        int remainder = (int) ((amount - num) * 1000);
        if (start.equals("0")) {
            start = "";
        } else if (remainder > 0) {
            if (speech) {
                start += " and ";
            } else {
                start += " ";
            }
        }

        if (remainder > 0) {
            int denominator = 0;
            int numerator = 0;
            for (int i : breakdowns) {
                if (remainder % i == 0) {
                    denominator = 1000 / i;
                    numerator = remainder / i;
                    break;
                }
            }

            if (denominator > 0 && numerator > 0) {
                if (speech)
                    return start + Integer.toString(numerator) + " " + fraction(denominator);
                else
                    return start + Integer.toString(numerator) + "/" + Integer.toString(denominator);
            } else {
                return Float.toString(amount);
            }
        }
        return start;
    }

    public static String fraction(int denominator) {
        switch (denominator) {
        case 2:
            return "half";
        case 3:
            return "third";
        case 4:
            return "quarter";
        case 8:
            return "eighth";
        default:
            return "";
        }
    }
}

Related

1. convertFloat(String str, float defaults)
2. convertFloatArray(float[] arr)
3. convertFloatArrayToString(float[] value, String separator)
4. convertFloatBitsToHFloat(final int floatBits)