public static void main(String[] args) {

    System.out.println("Enter size: ");
    Scanner s = new Scanner(System.in);
    int p = s.nextInt();
    if (p > 15) {
        System.out.println("Too much to handle!");
    }
    int oldArray[] = new int [p];
for (int i = 0; i<oldArray.length;i++) {
        oldArray[i]=(int)(Math.random()*10);
    }
    int newArray[] = moveA(oldArray);
    printA(oldArray);
    printA(newArray);
}

public static int[] moveA(int[] array1) {
int[] array2 = new int[array1.length];

 for (int i = 0; i < array2.length - 1; i++) {
    array2[i+1] = array1[i];
}
array2[0] = array1[array1.length - 1];
return array2;
}

public static void printA(int[] arr) {
    System.out.println(Arrays.toString(arr));
}

Enter size:
4
[1, 5, 9, 3]
[3, 1, 5, 9]

for ( int b = 0; b <= oldArray.length; b++)
int newArray[] = moveA(oldArray);
printA(oldArray);
printA(newArray)