1 /* 2 * Copyright (c) 2000, 2004, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 import java.util.ArrayList; 27 import java.util.HashMap; 28 import java.util.List; 29 import java.util.Map; 30 31 /** 32 * Month enum handles month related manipulation. 33 * 34 * @since 1.4 35 */ 36 enum Month { 37 JANUARY("Jan"), 38 FEBRUARY("Feb"), 39 MARCH("Mar"), 40 APRIL("Apr"), 41 MAY("May"), 42 JUNE("Jun"), 43 JULY("Jul"), 44 AUGUST("Aug"), 45 SEPTEMBER("Sep"), 46 OCTOBER("Oct"), 47 NOVEMBER("Nov"), 48 DECEMBER("Dec"); 49 50 private final String abbr; 51 52 private static final Map<String,Month> abbreviations 53 = new HashMap<String,Month>(12); 54 55 static { 56 for (Month m : Month.values()) { 57 abbreviations.put(m.abbr, m); 58 } 59 } 60 61 private Month(String abbr) { 62 this.abbr = abbr; 63 } 64 65 int value() { 66 return ordinal() + 1; 67 } 68 69 /** 70 * Parses the specified string as a month abbreviation. 71 * @param name the month abbreviation 72 * @return the Month value 73 */ 74 static Month parse(String name) { 75 Month m = abbreviations.get(name); 76 if (m != null) { 77 return m; 78 } 79 return null; 80 } 81 82 /** 83 * @param month the nunmth number (1-based) 84 * @return the month name in uppercase of the specified month 85 */ 86 static String toString(int month) { 87 if (month >= JANUARY.value() && month <= DECEMBER.value()) { 88 return "Calendar." + Month.values()[month - 1]; 89 } 90 throw new IllegalArgumentException("wrong month number: " + month); 91 } 92 }