Decodes the minutes into plain language. - Java java.util

Java examples for java.util:Minute

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Description

Decodes the minutes into plain language.

Demo Code


//package com.java2s;
import java.util.Calendar;

public class Main {
    public static void main(String[] argv) throws Exception {
        Calendar time = Calendar.getInstance();
        System.out.println(decodeMinutes(time));
    }/*from  w w  w . j  a v a  2s  . c  o m*/

    public static final String QUARTER_PAST = "a quarter past";
    public static final String QUARTER_TO = "a quarter to";
    public static final String HALF_PAST = "half past";
    public static final String JUST_AFTER = "just after";
    public static final String JUST_BEFORE = "just before";

    /**
     * Decodes the minutes into plain language. Rules: 7 minutes after each 15 
     * is just after, 6 minutes before each 15 is just before, 15 is quarter past, 
     * 30 is half past, 45 is quarter to.
     * 
     * E.g. 8:43 = just before a quarter to nine.
     * 
     * @param time the time to decode.
     * @return String representing the position in the hour.
     */
    public static String decodeMinutes(final Calendar time) {
        int minute = time.get(Calendar.MINUTE);
        String decodedMinutes = decodeQuarterHour(minute);
        for (int i = 0; i <= 45; i += 15) {
            if (minute > i && minute <= i + 7) {
                decodedMinutes = JUST_AFTER + " " + decodedMinutes;
            }
            if (minute > i + 7 && minute < i + 15) {
                decodedMinutes = JUST_BEFORE + " " + decodedMinutes;
            }
        }
        return decodedMinutes;
    }

    /**
     * Determines which quarter of the hour the supplied minute is closest to. 
     * Returns an empty string if the answer is the hour. Otherwise it returns
     * half past, a quarter past or a quarter to.
     * 
     * @param minute the minute of the hour.
     * @return String based on the section of the hour the minute is in or empty.
     */
    private static String decodeQuarterHour(int minute) {
        String decodedMinutes = "";
        if (minute > 7 && minute <= 22) {
            decodedMinutes = QUARTER_PAST + " ";
        }
        if (minute > 22 && minute <= 37) {
            decodedMinutes = HALF_PAST + " ";
        }
        if (minute > 37 && minute <= 52) {
            decodedMinutes = QUARTER_TO + " ";
        }
        return decodedMinutes;
    }
}

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