Invalid integer formats

pulkit1990dang

i want to find the sum of 10 numbers entered (valid) and also find the no. of valid and non valid nos. entered ....i made the program below but it doesn't work...and need modification in it ?

Code:

import java.util.*;

public class EH1 {
    
    public static void main(String[] args){
        
    Scanner s = new Scanner(System.in);
        int k=1,c=0,sum=0,invalid=0,valid=0;
        
        System.out.println("Enter 10 numbers :");
        
while (k<=10)
  {
       try
           { 
                c = s.nextInt();
                sum =sum + c;
                valid++;
                k++;
           }

         
    catch(NumberFormatException ex) 
   
         {
            k++;
            System.out.println("  INVALID NUMBER  ");
            invalid++;

         }
 
  }
        
        System.out.println("Valid numbers : "+valid);
        System.out.println("Invalid numbers : "+invalid);
        System.out.println("SUM : "+sum);
        
    }
}
 

DrRakha

see the modification i made below

Code:

 Scanner s = new Scanner(System.in);
        int k = 1, c = 0, sum = 0, invalid = 0, valid = 0;
        String number="";
        System.out.println("Enter 10 numbers :");

        while (k <= 10) {
            try {
                number = s.next();
                c=0;
                c=Integer.parseInt(number);
                sum = sum + c;
                System.out.println("Sum so far"+sum);
                valid++;
                k++;
            } catch (NumberFormatException ex) {
                k++;
                System.out.println(" INVALID NUMBER ");
                invalid++;

            }catch  (InputMismatchException exception){
                     k++;
                System.out.println(" INVALID NUMBER ");
                invalid++;
            }


        }

        System.out.println("Valid numbers : " + valid);
        System.out.println("Invalid numbers : " + invalid);
        System.out.println("SUM : " + sum);
 

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Invalid integer formats

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