Question

How to cyclically rotate the elements of int array right N times in Java

Answer 1

public class MyClass {
    static void rotate_array_right_one_time(int[] arr) {
        int arr_size = arr.length;
        int last = arr[arr_size - 1];
        
        for (int i = arr_size - 1; i > 0; i--) {
            arr[i] = arr[i - 1];
        }
          
        arr[0] = last;
    }
    public static void main(String args[]) {
        int[] arr = new int[] { 4, 7, 2, 9, 3 };
        int arr_size = arr.length;
        int n_times = 3;
   
        for (int i = 0; i < n_times; i++)
            rotate_array_right_one_time(arr);
       
        for (int i = 0; i < arr_size; i++) {
            System.out.print(arr[i] + " ");
        }
    }
}




/*
run:
   
2 9 3 4 7 
   
*/

 

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