ozwitch.java

来自「thinking in java 书中源码 第四版」· Java 代码 · 共 28 行

//: enumerated/OzWitch.java
// The witches in the land of Oz.
import static net.mindview.util.Print.*;

public enum OzWitch {
  // Instances must be defined first, before methods:
  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 the Ruby " +
    "Slippers, crushed by Dorothy's house"),
  SOUTH("Good by inference, but missing");
  private String description;
  // Constructor must be package or private access:
  private OzWitch(String description) {
    this.description = description;
  }
  public String getDescription() { return description; }
  public static void main(String[] args) {
    for(OzWitch witch : OzWitch.values())
      print(witch + ": " + witch.getDescription());
  }
} /* Output:
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 the Ruby Slippers, crushed by Dorothy's house
SOUTH: Good by inference, but missing
*///:~