📌 In order to find duplicate words, we first need to split the sentence into words. For that use split() method from String Class, this will return array of strings. 📌 After getting the list of ...

> 原文：[https://www.geeksforgeeks.org/java-program-to-print-all-duplicate-characters-in-a-string/](https://www.geeksforgeeks.org/java-program-to-print-all ...