Java Number Min Value min(String a, String b)

Description

min

License

Open Source License

Return

the minimum interval from a and b

Declaration

public static String min(String a, String b) 

Method Source Code

//package com.java2s;
/*/* w  w w  .ja v  a2s  .  c  o m*/
 * This file is part of rasdaman community.
 *
 * Rasdaman community 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.
 *
 * Rasdaman community 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 rasdaman community.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Copyright 2003 - 2010 Peter Baumann / rasdaman GmbH.
 *
 * For more information please see <http://www.rasdaman.org>
 * or contact Peter Baumann via <baumann@rasdaman.com>.
 */

public class Main {
    /**
     * @return the minimum interval from a and b
     */
    public static String min(String a, String b) {
        String[] as = a.split(":");
        String[] bs = b.split(":");
        if (as.length < bs.length) {
            return a;
        } else if (as.length > bs.length) {
            return b;
        }
        Integer al = toInt(as, 0);
        Integer bl = toInt(bs, 0);
        if (as.length == 1) {
            if (al < bl) {
                return a;
            } else {
                return b;
            }
        }
        Integer ah = toInt(as, 1);
        Integer bh = toInt(bs, 1);

        Integer rl = al;
        if (rl > bl) {
            rl = bl;
        }
        Integer rh = ah;
        if (rh > bh) {
            rh = bh;
        }

        return toStr(rl) + ":" + toStr(rh);
    }

    private static Integer toInt(String[] s, int i) {
        if (s[i].equals("*")) {
            return Integer.MAX_VALUE;
        } else {
            return Integer.parseInt(s[i]);
        }
    }

    private static String toStr(Integer i) {
        if (i == Integer.MAX_VALUE) {
            return "*";
        } else {
            return i.toString();
        }
    }
}

Related

1. min(Number n0, Number n1)
2. min(Number num1, Number num2)
3. Min(Object in)
4. min(Object o1, Object o2)
5. min(String a, String b)
6. min(String in, int len)
7. min(String name)
8. min(String s)
9. min(T a, T b)