Java Date Format As fmt(long count)

Description

fmt

License

Open Source License

Declaration

public static String fmt(long count) 

Method Source Code

//package com.java2s;
/*//from   w w w.j  ava 2s . c o m
 * Aprof - Java Memory Allocation Profiler
 * Copyright (C) 2002-2014  Devexperts LLC
 *
 * This program 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, either version 3 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.text.NumberFormat;
import java.util.*;

public class Main {
    private static NumberFormat FORMAT = NumberFormat.getNumberInstance(Locale.US);

    public static String fmt(String format, String... keyValues) {
        Map<String, String> kv = new HashMap<String, String>();
        for (String keyValue : keyValues) {
            int i = keyValue.indexOf('=');
            if (i < 0)
                throw new IllegalArgumentException("'=' is not found");
            kv.put(keyValue.substring(0, i), keyValue.substring(i + 1));
        }
        StringBuilder sb = new StringBuilder();
        int i = 0;
        while (true) {
            int j = format.indexOf('{', i);
            if (j < 0)
                j = format.length();
            sb.append(format.substring(i, j));
            if (j >= format.length())
                break;
            int k = format.indexOf('}', j + 1);
            if (k < 0)
                throw new IllegalArgumentException("'}' is not found");
            String key = format.substring(j + 1, k);
            if (!kv.containsKey(key))
                throw new IllegalArgumentException("Unknown key '" + key + "'");
            sb.append(kv.get(key));
            i = k + 1;
        }
        return sb.toString();
    }

    public static String fmt(long count) {
        return FORMAT.format(count);
    }
}

Related

1. fmt(double d)
2. fmt(double num, int minIntDigits, int maxFracDigitis)
3. fmt(String pattern, Object... args)
4. fmtBdToString(BigDecimal bd, DecimalFormat df)
5. fmtDate(Date date)
6. fmtDate(Date date)