Is your loop supposed to allow multiple guesses or is it supposed to allow multiple games?

If it is for multiple guesses, then you can't keep giving a new value to lotteryNum each time through the loop.

Edit: Then it seems OK, except you need

String lotteryNum = "";

to be inside the loop.

Also, you could generate all 3 digits with:

String lotteryNum = "";

for (int i=0; i<3; i++) lotteryNum += (int) (Math.random () * 10);

I want a program that will generate a 3-digit number, each digit ranging from 0-9. Then ask the user to guess the number. I have to use a for loop and strings, not ints.

I'd appreciate a lot of someone checked my code. I confused on the for loop part where it's supposed to generate a 3 digit number, but I don't know if I even set it up right ;/



import java.util.Scanner;

public class Lottery

{

public static void main(String[] args)

{

//declare and initialized variables and objects

Scanner in = new Scanner(System.in);



String lotteryNum = "";

String userGuess = "";

double randNum;

int terminator = 9;

int randomNum;









for(int counter = 0; counter <= terminator; counter ++)

{

randomNum = (int)(Math.random() * 10);

lotteryNum += randomNum;

randomNum = (int)(Math.random() * 10);

lotteryNum += randomNum;

randomNum = (int)(Math.random() * 10);

lotteryNum += randomNum;







System.out.print("Please enter your three numbers (e.g. 123): "); //ask user to input their guess

userGuess = in.next();