--- a/net/minecraft/client/resources/Language.java
+++ b/net/minecraft/client/resources/Language.java
@@ -15,7 +15,13 @@
       this.region = regionIn;
       this.name = nameIn;
       this.bidirectional = bidirectionalIn;
+      String[] splitLangCode = name.split("_", 2);
+      if (splitLangCode.length == 1) { // Vanilla has some languages without underscores
+          this.javaLocale = new java.util.Locale(languageCode);
+      } else {
+          this.javaLocale = new java.util.Locale(splitLangCode[0], splitLangCode[1]);
    }
+   }
 
    public String getLanguageCode() {
       return this.languageCode;
@@ -44,4 +50,8 @@
    public int compareTo(Language p_compareTo_1_) {
       return this.languageCode.compareTo(p_compareTo_1_.languageCode);
    }
+   
+   // Forge: add access to Locale so modders can create correct string and number formatters
+   private final java.util.Locale javaLocale;
+   public java.util.Locale getJavaLocale() { return javaLocale; }
 }