JAVA : How can I reverse the string and parse it with '-' in Java

I have to reverse the given string and parse it with "-".
for eg. INPUT: abcde
OUTPUT : e-d-c-b-a
Any simple solutions?

>Solution :

Using StringBuilder#reverse we can try:

String input = "abcde";
StringBuilder sb = new StringBuilder(input);
String output = sb.reverse().toString().replaceAll("(?<=.)(?=.)", "-");
System.out.println(output);  // e-d-c-b-a

For an explanation on the regex pattern used in String#replaceAll above, it aims to match every position in the string where there are letters on both side:

(?<=.)  assert that some character precedes
(?=.)   assert that some character follows