Java string sorting

We know that Java's string class has two methods for string comparison: compareto (string) and comparetoingorecase (string ). If you only sort the English strings, this is no problem. However, if you need to sort other languages, the two methods of string are not enough. At this time, we need to use the collator class of the Java. Text package. The collator class can sort strings by default region or by specified region. You can choose to use it as needed. Collator not only supports sorting strings by region, but also supports sorting strings in different ways: primary, secondary, tertiary, and identical.