Java 开启枚举
开启枚举
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/** from nowjava - 时 代 Java**/2
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enum Day {4
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SUNDAY, MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY6
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}8
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public class EnumTest {11
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Day day;13
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public EnumTest(Day day) {16
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this.day = day;18
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}20
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public void tellItLikeItIs() {23
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switch (day) {25
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case MONDAY:27
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System.out.println("Mondays are bad.");29
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break;31
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case FRIDAY:34
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System.out.println("Fridays are better.");36
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break;38
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case SATURDAY://from 时 代 Java 公 众 号 - nowjava.com41
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case SUNDAY:43
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System.out.println("Weekends are best.");45
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break;47
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default:50
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System.out.println("Midweek days are so-so.");52
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break;54
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}56
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}58
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public static void main(String[] args) {61
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EnumTest firstDay = new EnumTest(Day.MONDAY);63
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firstDay.tellItLikeItIs();65
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EnumTest thirdDay = new EnumTest(Day.WEDNESDAY);67
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thirdDay.tellItLikeItIs();69
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EnumTest fifthDay = new EnumTest(Day.FRIDAY);71
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fifthDay.tellItLikeItIs();73
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EnumTest sixthDay = new EnumTest(Day.SATURDAY);75
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sixthDay.tellItLikeItIs();77
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EnumTest seventhDay = new EnumTest(Day.SUNDAY);79
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seventhDay.tellItLikeItIs();81
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}83
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}85
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/*88
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* Copyright (c) 1995, 2008, Oracle and/or its affiliates. All rights reserved.90
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*92
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* Redistribution and use in source and binary forms, with or without94
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* modification, are permitted provided that the following conditions96
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* are met:98
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*100
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* - Redistributions of source code must retain the above copyright102
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* notice, this list of conditions and the following disclaimer.104
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*106
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* - Redistributions in binary form must reproduce the above copyright108
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* notice, this list of conditions and the following disclaimer in the110
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* documentation and/or other materials provided with the distribution.112
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*114
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* - Neither the name of Oracle or the names of its116
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* contributors may be used to endorse or promote products derived118
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* from this software without specific prior written permission.120
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*122
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS124
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,126
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR128
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR130
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