Question

Write an Assembly Language program StackReverse which uses the runtime stack to reverse an array Vector of N unsigned double-word integers.

Answer 1

public class GFG {   

    static void swap(char a[], int index1, int index2) {

        char temp = a[index1];

        a[index1] = a[index2];

        a[index2] = temp;

    }

      static void reverse(char str[]) {

    int n = str.length, i;

   for (i = 0; i < n / 2; i++) {

            swap(str, i, n - i - 1);

        }

    }

      public static void main(String[] args) {

        char str[] = "abc".toCharArray();

  reverse(str);

        System.out.printf("Reversed string is " + String.valueOf(str));

    }

}