Too big a number made it negative...

Question

So I made a code to multiply odd numbers by 3 and add 1, and divide even numbers by 2 and so on... Here is the code: import java.util.Scanner;
public class Program {

private static Scanner number;

public static void main(String[] args) {
System.out.println("input starting value");
number = new Scanner(System.in);
int x= number.nextInt();
while(x > 1)
if(x % 2 == 0){
x /= 2;
System.out.println(x);
}
else{ x *= 3;
x += 1;
System.out.println(x);

}
}

}
When I input 999999999 I got -1294967298 as my answer. I am just wondering how that came to be what happened...

Answer 1

Youre using int, which doesn't go that high in value. If you exceed its max, you get what you got. Try using long instead of int.

Answer 2

nope .u cant use integer.ur value has been reached upto -128 to 127 (256) which is the last range for an any integer value.so u will have to use double,long as a keyword.becoz they has a very long range.

Answer 3

yes. Just keep in mind it uses up more memory so not advised if not needed.

Answer 4

Oh alright, I was just being stupid with the code anyway, thanks for the help!

Answer 5

np, best of luck on future codings :)