📌 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 ...

- Use stack instead of stringBuffer: keep append/remove last added item - However, stringBuffer appears to be faster than stack. Given a string which contains only lowercase letters, remove duplicate ...

The awk command can make it easy to remove duplicate characters from a string even when those characters aren’t sequential, especially when the process is turned into a script. First, the awk command ...