rev_str.java

//Link: https://leetcode.com/problems/reverse-string/
class Solution {
    public void reverseString(char[] s) {
        char t;
        
        for(int i=0;i<s.length/2;i++){
            t = s[i];
            s[i] = s[s.length-(i+1)];
            s[s.length-(i+1)] = t;
        }
        
    }
}