corejava-programming: How to find lucky number?

import java.util.Scanner;

public class LuckyNumber {
public static void main(String[] args) {
int luckyNumber=0;
System.out.println("Enter the DOB in dd/MM/yyyy format:");
Scanner input=new Scanner(System.in);
String dob=input.nextLine();
for(int i=0;i<dob.length();i++){
if(dob.charAt(i)!=´/´){
/*Sum of all the digits in the DOB*/
luckyNumber=luckyNumber+Integer.parseInt(String.valueOf(dob.charAt(i)));
}
}

System.out.println("Lucky Number: "+getOneDigit(luckyNumber));

}

public static int getOneDigit(Integer number){
int result=number;
while(number.toString().length()>1){
result=0;
for(int i=0;i<number.toString().length();i++){
result=result+Integer.parseInt(String.valueOf(number.toString().charAt(i)));
}
number=result;
}
return result;
}

}


Output:
----------------------------
Enter the DOB in dd/MM/yyyy format:
06/09/1999
Lucky Number: 7