core/play/src/main/java/play/i18n/MessagesApi.java
public String get(play.api.i18n.Lang lang, String key, Object... args) {
    Seq<Object> scalaArgs = convertArgsToScalaBuffer(args);
    return messages.apply(key, scalaArgs, lang);
  }
public String get(play.api.i18n.Lang lang, String key, Object... args) {
    Seq<Object> scalaArgs = convertArgsToScalaBuffer(args);
    return messages.apply(key, scalaArgs, lang);
  }
Translates a message.

<p>Uses `java.text.MessageFormat` internally to format the message.

@param lang the message lang
@param key the message key
@param args the message arguments
@return the formatted message or a default rendering if the key wasn't defined