Question

Fill an array (type int, size n).

Perform Right Circular Shift.

Answer 1

import java.util.*;
class clArraysRightShift 
{
    public void main() 
    {
        Scanner sc = new Scanner(System.in);
        System.out.print(" Enter the array size : ");
        int n = sc.nextInt();
        int R[] = new int[n];
        int j = 0;        
        for (j = 0; j < n; j++) 
        {
           System.out.print("Enter value for cell number " + (j) + " : ");
           R[j] = sc.nextInt();
        }        
        System.out.println("\t The array is: ");
        for(j = 0; j < n; j++)
        {
           System.out.print(" " + R[j]);
        }       
        int tmp = R[n - 1];         
        for(j = n - 1; j > 0; j--)
        {
           R[j] = R[j - 1];
        }        
        R[0] = tmp;         
        System.out.println("\n\n The array after a right circular shift : ");
        for(j = 0; j < n; j++)
        {
           System.out.print("\t" + R[j]);
        }
    }
}

Output:

Enter the array size : 5

Enter value for cell number 0 : 10

Enter value for cell number 1 : 20

Enter value for cell number 2 : 30

Enter value for cell number 3 : 40

Enter value for cell number 4 : 50

The array is :

10 20 30 40 50

The array after a right circular shift :

50 10 20 30 40