Reverse a string in Java

Question

I have \"Hello World\" kept in a String variable named hi.

I need to print it, but reversed.

How can I do this? I understand there

Answer 1

I tried, just for fun, by using a Stack. Here my code:

public String reverseString(String s) {
    Stack stack = new Stack<>();
    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < s.length(); i++) {
        stack.push(s.charAt(i));
    }
    while (!stack.empty()) {
        sb.append(stack.pop());
    }
    return sb.toString();

}