How to hashMap an array in Java?

Read long then put it in Array, java?

• import java.util.Scanner; public class Credit{ public static void main(String[]args){ System.out.println("Enter Credit card nomber,please"); long N=0; Scanner Nomber=new Scanner (System.in); N=Nomber.nextLong(); //i read it here as long nomber for example 1354 int Array[]=FillArray(N); //i sent the long nomber to the method in order to fill it in an array } //methods area public static int[] FillArray (long N) { int n=4; //i want the 1234 to be in an array like {1,2,3,4} so array[0]=1, array[1]=2 ... etc, HOW? and what if i dont know whats the nomber of digits the user will enter? 4 digits or 7 or whatever? int Array[]=new int[n]; for (int i=0;i<n;i++) { } return Array; } }

• Answer:

  import java.util.Scanner; public class Credit{ public static void main(String[]args){ System.out.println("Enter Credit card nomber,please"); long N=0; Scanner Nomber=new Scanner (System.in); N=Nomber.nextLong(); String s=Integer.toString(N,10); int len=s.length(); int Array[]= new FillArray(len); Array = FillArray(Array,N); //send N and Array[] to the method in order to fill it in an array // Print Array } public static int[] FillArray (int Array[], long N) { int rem, i=0; while(N!=0) { rem= N%10; Array[i]=rem; N/=10; i++; } return Array; } }