Java Number Format Pattern countFormat(int no)

Description

Returns a formatted number inclusive counting ending (see #countEnding(int) .

License

Apache License

Parameter

Parameter	Description
no	The number to format

Return

The formatted number

Declaration

public static String countFormat(int no) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright 2009, 2010 Innovation Gate GmbH
 * /* w  w  w . ja  va2  s.  c om*/
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/

import java.text.DecimalFormat;

public class Main {
    /**
     * Returns a formatted number inclusive counting ending (see {@link #countEnding(int)}.
     * @param no The number to format
     * @return The formatted number
     */
    public static String countFormat(int no) {
        return new DecimalFormat().format(no) + countEnding(no);
    }

    /**
     * Variant of {@link #countFormat(int)} that takes a string that will be parsed to an integer
     * @param noStr A string that is parsable as integer
     * @return  The formatted number
     */
    public static String countFormat(String noStr) {
        return countFormat(Integer.parseInt(noStr));
    }

    /**
     * Returns english counting endings for numbers "st", "nd", "rd" and "th" like in "1st", "2nd", "3rd", "4th", "21st" etc.
     * @param no The number to determine ending for
     * @return The ending string exclusive the number
     */
    public static String countEnding(int no) {

        int remainder = no % 10;
        if (remainder == 1) {
            return "st";
        } else if (remainder == 2) {
            return "nd";
        } else if (remainder == 3) {
            return "rd";
        } else {
            return "th";
        }

    }

    /**
     * Parses an integer from a string.
     * Other than the JRE functions this method also copes with integers that are expressed like floats, like 10.0 
     * @param str A string representing a number.
     * @return The integer. If the string represented a float the integer part of that is returned
     */
    public static int parseInt(String str) {

        double dValue = Double.parseDouble(str);
        return (int) Math.floor(dValue);

    }
}

Related

1. createDecimalFormat(final String pattern)
2. CreateDecimalFormat(int numberOfDecimalsDisplayed)
3. createDecimalFormat(String pattern)
4. createDecimalFormatter(String pattern)