rotateLeft.java

class rotateLeft 
{  
    public static void main(String[] args) 
    {  
        //Initialize array  
        int [] arr = new int [] {1, 2, 3, 4, 5};  
        //n determine the number of times an array should be rotated  
        int n = 3;  
        //Displays original array  
        System.out.println("Original array: ");  
        for (int i = 0; i < arr.length; i++) 
        {  
            System.out.print(arr[i] + " ");  
        }  
        //Rotate the given array by n times toward left  
        for(int i = 0; i < n; i++)
        {  
            int j, first;  
            //Stores the first element of the array  
            first = arr[0];  
            for(j = 0; j < arr.length-1; j++)
            {  
                //Shift element of array by one  
                arr[j] = arr[j+1];  
            }  
            //First element of array will be added to the end  
            arr[j] = first;  
        }  
        System.out.println();  
        //Displays resulting array after rotation  
        System.out.println("Array after left rotation: ");  
        for(int i = 0; i< arr.length; i++)
        {  
            System.out.print(arr[i] + " ");  
        }  
    }  
}