public class ArrayShifter {

	//instance variables:
	int theArray[];

	public ArrayShifter (int [] iArray){
		//conrtuctor, sets the values for theArray
		this.theArray = iArray;
	}
	
	public int [] shiftLeft(int value){
		//returns an array where the elements of theArray have been shifted the left
		//The value passed in becomes the rightmost element
		//Thus the leftmost element of theArray will not be in the returned array.
		//example: initital array is {1, 2, 3, 4}, and 8 is passed in
		//         then the array {2, 3, 4, 8} is returned (this.theArray does not change)
		int [] newArray = new int[this.theArray.length];
		for (int i = 1; i < this.theArray.length; i++){
			newArray[i-1] = this.theArray[i];
		}
		newArray[this.theArray.length - 1] = value;
		return newArray;
	}
	
	public int [] shiftRight(int value){
		//returns an array where the elements of theArray have been shifted the right
		//The value passed in becomes the leftmost element.
		//Thus the rightmost element of theArray will not be in the returned array.
		//example: initital array is {1, 2, 3, 4}, and 8 is passed in
		//         then the array {8, 1, 2, 3} is returned (theArray does not change)
		int [] newArray = new int[this.theArray.length];
		for (int i = 0; i < this.theArray.length - 1; i++){
			newArray[i+1] = this.theArray[i];
		}
		newArray[0] = value;
		return newArray;
	}
	
	public static void main(String [] args){
		//just tests the methods above
		int [] iArray = {1, 2, 3, 4};
		ArrayShifter ar = new ArrayShifter(iArray);
		
		int [] array2 = ar.shiftLeft(8);
		for (int x: array2)
			System.out.println(x);
			
		array2 = ar.shiftRight(8);
		for (int x: array2)
			System.out.println(x);
		
		//note: the values for theArray do not change, they are just used with the shift methods
	}
}