language is in java

Ask the user for a bunch of integers. Show the sum of those numbers.

Make your program handle strange input. Specifically, if they didn't enter a number, scan the String to find just the digits and piece those digits together to form a number.

If the user enters something without any digits, end the program.

My problem is making my code output "Well, thats not a number but here is what i extracted " + num"

Current code is.

import java.util.Scanner;

public class hwtwo

{

public static void main(String[] args) {

Scanner keyboard = new Scanner(System.in);

String str;

int sum = 0;

while(true) {

System.out.println("Enter a integer");

int a=0,l=0,m=0;

str =keyboard.next();

for (int i = 0; i

if (Character.isDigit(str.charAt(i)))

{l=1;

m=str.charAt(i);

a=a*10+m-48;}

if(l==0)

{ System.out.println("There were no digits in that input.");

break;}

else

{sum += a;

System.out.println("Current sum: " + sum);}

}

System.out.println("Final sum: " + sum);

}

}

thank you

Test Case 3 - Failed Standard Input ..4993 969798re7 2gf jh3 df64f57 f121 x2e3errrw5ddd6 Required Output Your Program's Output Enter a integerin Well, that's not a number but here's what I extracted : 43 in Current sum: 43 Enter a integer in Well, that's not a number but here's what I extracted : 6787 in Current sum: 6830 in Enter a integer in Well, that's not a number but here's what I extracted : 2 Current sum: 6832 Enter a integert Well, that's not a number but here's what I extracted : 3 Current sum: 6835 in Enter a integer in Well, that's not a number but here's what I extracted : 451 Current sum: 6880 Enter a integer in Well, that's not a number but here's what I extracted : 211 Current sum: 6901 Enter a integer in Well, that's not a number but here's what I extracted : 123456n Current sum: 130357 In Enter a integer in There were no digits in that input. In Enter a integerin Current sum: 43 Enter a integer in Current sum: 6830 in Enter a integerlin Current sum: 6832 Enter a integer in Current sum: 6835 Enter a integer in Current sum: 6880 Enter a integer Current sum: 690111 Enter a integer in Current sum: 130357in Enter a integerin There were no digits in that input. An Final sum: 130357n (Your output is too short.)