Java 开启字串值

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public class StringSwitchDemo {

/** 

来 自 

时 代 J a v a 公 众 号

**/

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    public static int getMonthNumber(String month) {

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        int monthNumber = 0;

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        if (month == null) {

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            return monthNumber;

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        }

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        switch (month.toLowerCase()) {

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        case "january":

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            monthNumber = 1;

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            break;

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        case "february":

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            monthNumber = 2;

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            break;

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        case "march":

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            monthNumber = 3;

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            break;

            /*

            来 自*

             时 代 J a v a

            */

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        case "april":

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            monthNumber = 4;

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            break;

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        case "may":

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            monthNumber = 5;

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            break;

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        case "june":

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            monthNumber = 6;

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            break;

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        case "july":

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            monthNumber = 7;

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            break;

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        case "august":

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            monthNumber = 8;

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            break;

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        case "september":

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            monthNumber = 9;

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            break;

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        case "october":

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            monthNumber = 10;

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            break;

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        case "november":

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            monthNumber = 11;

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            break;

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        case "december":

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            monthNumber = 12;

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            break;

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        default:

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            monthNumber = 0;

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            break;

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        }

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        return monthNumber;

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    }

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    public static void main(String[] args) {

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        String month = "August";

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        int returnedMonthNumber = StringSwitchDemo.getMonthNumber(month);

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        if (returnedMonthNumber == 0) {

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            System.out.println("Invalid month");

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        } else {

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            System.out.println(returnedMonthNumber);

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        }

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    }

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}

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/*

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 * Copyright (c) 1995, 2011, Oracle and/or its affiliates. All rights reserved.

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 *

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 * Redistribution and use in source and binary forms, with or without

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 * modification, are permitted provided that the following conditions

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 * are met:

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 *

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 *   - Redistributions of source code must retain the above copyright

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 *     notice, this list of conditions and the following disclaimer.

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 *

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 *   - Redistributions in binary form must reproduce the above copyright

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 *     notice, this list of conditions and the following disclaimer in the

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 *     documentation and/or other materials provided with the distribution.

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 *

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 *   - Neither the name of Oracle or the names of its

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 *     contributors may be used to endorse or promote products derived

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 *     from this software without specific prior written permission.

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 *

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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

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 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

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 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

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 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

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