- 每个枚举实例都可以有自己的描述,在()里的字符串,为此,要在枚举类中定义一个成员变量,用以表示每个枚举实例()中的字符串;
- 要为这个成员变量定义一个专门的构造方法;
- 还可以定义一个方法,用以返回每个枚举实例的描述字符串;
- 枚举实例后如果还要定义方法,那么最后一个枚举实例后要跟分号;
- 枚举类中定义方法和成员的情况下,要先定义枚举实例;
package chapter19._1._2;
public enum OzWitch {
WEST("Miss Gulch, aka the Wicked Witch of the West"),
NORTH("Glinda, the Good Witch of the North"),
EAST("Wicked Witch of the East, wearer of ruby Slippers, crushed by Dorothy's house"),
SOUTH("Good by inference, but missing");
private String description;
OzWitch(String description) {
this.description = description;
}
public String getDescription() {
return description;
}
public static void main(String[] args) {
for (OzWitch ozWitch : OzWitch.values()) {
System.out.println("witch : " + ozWitch.getDescription());
}
}
}
输出:
witch : Miss Gulch, aka the Wicked Witch of the West
witch : Glinda, the Good Witch of the North
witch : Wicked Witch of the East, wearer of ruby Slippers, crushed by Dorothy's house
witch : Good by inference, but missing
本文介绍如何在枚举类型中添加描述字符串,通过定义成员变量、构造方法和获取描述的方法,实现枚举实例的丰富信息展示。
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