Enum: get a list of keys

Question

I am not a Java developer. But I'm looking at Android app development right now, so I'm doing a bit of nostalgia, doing a few java again without touching it for three years.

I look forward to using google-api-translate-java library.
Which has a Language class . This listing allows you to provide the name of the language and get its meaning for Google Translate.

I can easily get all the values ​​with:

for (Language l : values()) {
    // Here I loop on one value
}

But I would like to get a list of all the key names (FRENCH, ENGLISH, ...).
Is there something like the "keys ()" method that would allow me to iterate over all the enumeration keys?

Answer 1

Language.values() EnumSet:

for (Language l : EnumSet.allOf(Language.class))
{
}

, API, . ( , ... , , . .)

values(), , - , , EnumSet.

: , , toString() - name() :

for (Language l : Language.values())
{
    String name = l.name();
    // Do stuff here
}

Answer 2

:

for (Language l : Language.values()) {
    l.name();
}

. :

• http://www.java2s.com/Code/JavaAPI/java.lang/Enumvalues.htm
• http://java.sun.com/javase/6/docs/api/java/lang/Enum.html
• http://java.sun.com/docs/books/tutorial/java/javaOO/enum.html

Answer 3

. X, X.values ​​(). . .