使用存储在枚举中的值作为字符串文字的最佳方法是什么？
public enum Modes {
some-really-long-string,
mode1,
mode2,
mode3
}
然后，我可以使用Mode.mode1将其字符串表示形式返回为mode1.不用一直打Mode.mode1.toString().
使用存储在枚举中的值作为字符串文字的最佳方法是什么？
public enum Modes {
some-really-long-string,
mode1,
mode2,
mode3
}
然后，我可以使用Mode.mode1将其字符串表示形式返回为mode1.不用一直打Mode.mode1.toString().
你不能.我想你有四个 Select .这四个人都提供了解决方案，但方法略有不同.
Option One: use the built-in 100 on an enum. This is perfectly fine if you don't need any special naming format.
String name = Modes.mode1.name(); // Returns the name of this enum constant, exactly as declared in its enum declaration.
Option Two: add overriding properties to your enums if you want more control
public enum Modes {
mode1 ("Fancy Mode 1"),
mode2 ("Fancy Mode 2"),
mode3 ("Fancy Mode 3");
private final String name;
private Modes(String s) {
name = s;
}
public boolean equalsName(String otherName) {
// (otherName == null) check is not needed because name.equals(null) returns false
return name.equals(otherName);
}
public String toString() {
return this.name;
}
}
Option Three: use static finals instead of enums:
public final class Modes {
public static final String MODE_1 = "Fancy Mode 1";
public static final String MODE_2 = "Fancy Mode 2";
public static final String MODE_3 = "Fancy Mode 3";
private Modes() { }
}
Option Four: interfaces have every field public, static and final:
public interface Modes {
String MODE_1 = "Fancy Mode 1";
String MODE_2 = "Fancy Mode 2";
String MODE_3 = "Fancy Mode 3";
}