Which application uses a stack to reverse a string?

Which application uses a stack to reverse a string?

Step 1: Start with a string that you want to reverse, for example, 'hello'.
Step 2: Create an empty stack.
Step 3: Take each character from the string one by one.
Step 4: Push each character onto the stack. After this step, the stack will have 'h', 'e', 'l', 'l', 'o' in that order.
Step 5: Now, start popping characters off the stack. The last character pushed will be the first one popped.
Step 6: Continue popping characters until the stack is empty. The order of characters will now be 'o', 'l', 'l', 'e', 'h'.
Step 7: Combine the popped characters to form the reversed string, which is 'olleh'.

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