Split a number into different section

Split.java

@@ -0,0 +1,55 @@
+/*Books are identified by International Standard Book Number(ISBN). ISBNs contain 
+13 digits, arranged in five groups such as 978-0-13-110362-8. The first group
+(GSI prefix) is currently either 978 or 979. The group identifier specifies the 
+language or country of origin (for example 0 and 1 are used for English speaking 
+countries). The publisher code identifies the publisher (13 is the code for 
+Prentice Hall, New Jersey). The item number is assigned by the publisher to 
+identify a specific book (110362 is the code for the book "The C Programming 
+Language" by Kernighan and Ritchie) and ISBN ends with a check digit that's used 
+to verify the accuracy of preceding digits. Write a program that breaks down the 
+ISBN entered by the user.:
+
+Sample Input:
+-----------------------
+Enter ISBN: 978-0-13-110362-8
+
+Sample Output:
+-----------------------
+GSI Prefix: 978
+Group Identifier: 0
+Publisher Code: 13
+Item Number: 110362
+Check Digit: 8
+
+Note: The number of digits in each group may vary. You can't assume that the 
+groups have the length shown in the sample output. You can test your program 
+with actual ISBN values (usually found on the back cover of a book and on the 
+copyright page */
+
+import java.util.*;
+public class Split {
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+        System.out.println("Enter ISBN: ");
+        String n = sc.nextLine();
+        String[] data = ExtractElement(n);
+        if(data!=null)
+        {
+            int i=0;
+            System.out.println("GSI Prefix: "+data[i++]);
+            System.out.println("Group Identifier: "+data[i++]);
+            System.out.println("Publisher Code: "+data[i++]);
+            System.out.println("Item Number: "+data[i++]);
+            System.out.println("Check Digit: "+data[i++]);
+        }
+    }
+    public static String[] ExtractElement(String data)
+    {
+        String[] num = data.split("-");   
+        if(num.length==5)
+        {
+            return num;
+        }
+        return null;
+    }
+}