在Java中开启Enum

为什么不能打开Java枚举?看起来很简单,可以做一些方便的代码。这个问题也适用于String。你可以打开char,但不能打开String...

回答:

你绝对可以打开枚举。Java教程中发布的示例。

public enum Day {

SUNDAY, MONDAY, TUESDAY, WEDNESDAY,

THURSDAY, FRIDAY, SATURDAY

}

public class EnumTest {

Day day;

public EnumTest(Day day) {

this.day = day;

}

public void tellItLikeItIs() {

switch (day) {

case MONDAY:

System.out.println("Mondays are bad.");

break;

case FRIDAY:

System.out.println("Fridays are better.");

break;

case SATURDAY:

case SUNDAY:

System.out.println("Weekends are best.");

break;

default:

System.out.println("Midweek days are so-so.");

break;

}

}

}

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