What did i do wrong

[jpnym15]

import java.util.*;

public class Summer

{
   public static void main (String[] args)
   {
  
     Scanner in = new Scanner(System.in);
     int first = 0;
     int last = 0;
     int total = 0;
     int i = 0;

     System.out.println("Hello. I will calculate the sum");
     System.out.println("of consecutive integers.");
     System.out.println("Please enter the starting number:");
     first = in.nextInt();
     System.out.println("Please enter the ending number:");
     last = in.nextInt();

     while (last < first)
     {
       System.out.println(last + " is smaller than " + first);
       System.out.println("The ending number must be bigger than the first");
       System.out.println("Enter the starting number again");
       first = in.nextInt();
       System.out.println("Enter the ending number again");
       last = in.nextInt();
       System.out.println("The sum of the numbers are " + total);
       total = sum(last, first);
     }
     
      
       	 for (i = first; i <= last; i++)
          {
    
         total = total + i;	
          }   
   }
              public static int sum(int num1, int num2)
              {
              	int result;
              	result = num1 + num2;
              	return result;
              }
}

after inserting my new method, it doesnt solve the problem. It still goes through and if i put in a larger starting number with a smaller ending number it tells me to try again, but it never adds up the numbers.

[serjant]

import java.util.*;

public class Summer

{
	
	 public  int sum(int num1, int num2)
     {
     	int result;
     	result = num1 + num2;
     	return result;
     }
   public static void main (String[] args)
   {
  
     Scanner in = new Scanner(System.in);
     int first = 0;
     int last = 0;
     int total = 0;
     int i = 0;

     System.out.println("Hello. I will calculate the sum");
     System.out.println("of consecutive integers.");
     System.out.println("Please enter the starting number:");
     first = in.nextInt();
     System.out.println("Please enter the ending number:");
     last = in.nextInt();

     while (last < first)
     {
       System.out.println(last + " is smaller than " + first);
       System.out.println("The ending number must be bigger than the first");
       System.out.println("Enter the starting number again");
       first = in.nextInt();
       System.out.println("Enter the ending number again");
       last = in.nextInt();
       System.out.println("The sum of the numbers are " + total);
       
     }
     total =new Summer().sum(last, first);
      
       	 for (i = first; i <= last; i++)
          {
    
       		 total = total + i;	
          }  
       	 System.out.println(total);
   }
             
}

[Eranga]

Actually no need to use method sum, for loop do the calculation for you.

total =new Summer().sum(last, first);

Remove this line from the serjants' code above and try.

[serjant]

Actually no need to use method sum, for loop do the calculation for you.

total =new Summer().sum(last, first);

Remove this line from the serjants' code above and try.

He didn't explain clearly what he really needed to do ;):o

[Eranga]

Yes, and still no response at all here. I think he wants to find the sum of all numbers within two integers, need to validate on that second number should be greater that the first.

[serjant]

I think again somebody wrote the code for him and he jumps from forum to forum with the code.

[Eranga]

Are you comes with cross-posting in another forum.

[serjant]

In another thread you will see that he even doesn't know about main method,look at the "i will pay" thread and you will understand.

[Eranga]

Yes lol. I go through that thread few minutes back. Only thing we can do is wait and see. ;)