Java 在静态方法中创建Local类
在静态方法中创建Local类
实例源码：
源代码：
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/*2
来 自*3
N o w J a v a . c o m4
*/5
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public class LocalClassExample {7
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static String regularExpression = "[^0-9]";10
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public static void validatePhoneNumber(String phoneNumber1,13
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String phoneNumber2) {15
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final int numberLength = 10;18
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// Valid in JDK 8 and later:21
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// int numberLength = 10;24
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/* 26
来自 27
*时 代 Java 公 众 号 - nowjava.com*/28
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class PhoneNumber {30
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String formattedPhoneNumber = null;33
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PhoneNumber(String phoneNumber) {36
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// numberLength = 7;38
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String currentNumber = phoneNumber.replaceAll(40
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regularExpression, "");42
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if (currentNumber.length() == numberLength)44
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formattedPhoneNumber = currentNumber;46
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else48
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formattedPhoneNumber = null;50
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}52
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public String getNumber() {55
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return formattedPhoneNumber;57
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}59
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// Valid in JDK 8 and later:62
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// public void printOriginalNumbers() {65
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// System.out.println("Original numbers are " + phoneNumber1 +67
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// " and " + phoneNumber2);69
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// }71
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}73
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PhoneNumber myNumber1 = new PhoneNumber(phoneNumber1);76
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PhoneNumber myNumber2 = new PhoneNumber(phoneNumber2);78
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// Valid in JDK 8 and later:81
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// myNumber1.printOriginalNumbers();84
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if (myNumber1.getNumber() == null)87
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System.out.println("First number is invalid");89
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else91
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System.out.println("First number is " + myNumber1.getNumber());93
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if (myNumber2.getNumber() == null)95
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System.out.println("Second number is invalid");97
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else99
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System.out.println("Second number is " + myNumber2.getNumber());101
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}104
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public static void main(String args) {107
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validatePhoneNumber("123-456-7890", "456-7890");109
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}111
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}113
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/*116
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* Copyright (c) 2013, 2014, Oracle and/or its affiliates. All rights reserved.118
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*120
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* Redistribution and use in source and binary forms, with or without122
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* modification, are permitted provided that the following conditions124
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* are met:126
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*128
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* - Redistributions of source code must retain the above copyright130
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* notice, this list of conditions and the following disclaimer.132
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*134
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* - Redistributions in binary form must reproduce the above copyright136
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* notice, this list of conditions and the following disclaimer in the138
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* documentation and/or other materials provided with the distribution.140
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*142
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* - Neither the name of Oracle or the names of its144
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* contributors may be used to endorse or promote products derived146
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* from this software without specific prior written permission.148
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*150
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS152
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,154
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR156
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