CODEWITHSUNDEEP
javaloops
bnr32jason
bnr32jason

Reputation: 113

Individually sum random numbers not in an array?

This is part of a school assignment which I've already turned in, I was graded down in one portion because the total sum of the random numbers was supposed to be adding the individual numbers together, not each line.

So if the lines read:

1 2 3

4 5 6

The total should be 21, not 579 as my program is doing now. I've really been struggling trying to figure this out. I tried generating a different random number object for each integer, for a total of three of them but that completely screwed up my output.

We're learning arrays next week, and after researching online I could do this easily with an array, but the assignment was to be done without arrays. How can I sum each entry individually? Thanks for any help!

Here is my code:

import java.util.Random;
import java.util.Scanner;

public class lottery {


public static void main(String[] args) {

Scanner input = new Scanner(System.in);
int gameType, gameTimes;
int randomNums, lotNum, sum = 0;    

System.out.println("\t\t Welcome to\n \t\tJAVA LOTTERY!\n\n\n");

System.out.print(" Would you like to play with 3, 4, or 5 numbers? ");
  gameType = input.nextInt();

System.out.println("\n\n Now think about a number with " + gameType + " digits and remember it!\n\n\n");

System.out.print(" How many games should we play? ");
  gameTimes = input.nextInt();  


System.out.println("\n\n We're all done! We played " + gameTimes + " games!\n\n" + 
        " The numbers randomly selected were: ");

for(int i = 0; i < gameTimes; i++)
  {
   lotNum = 0;

   for(int j = 0; j < gameType; j++)
   {
    randomNums = (new Random()).nextInt(10);

    lotNum = (lotNum * 10) + randomNums;

    System.out.print(" " + randomNums);    
   }//end nested for loop

   System.out.println();

   sum += lotNum;

  }//end for loop

System.out.println("\n\nThe total of all of the numbers was " + sum );  

input.close();
    }//end main method
}//end lottery class

Upvotes: 0

Views: 99

Answers (1)

Raman Shrivastava
Raman Shrivastava

Reputation: 2953

Change 

lotNum = (lotNum * 10) + randomNums;

to 

lotNum += randomNums;

Upvotes: 3

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