A number generation program....

[Steve Jensen]

Folks,
Below is a piece of code which generates an int value, at random, six times.

  
import java.util.Random;
public class Test
{
public static void main (String[] args)
  {
  Random random = new Random();
  for (int i=0; i<6; i++)
  {
  int x= random.nextInt();
  System.out.println("x = " + x);
  }
  }
}

Thing is, the numbers are randomly generated from anything between the upper and lower bound limits of int.
How can I make it so that the numbers generated, are within the range 1 - 49 ?

[Thomas Paul]

random.nextInt(49) + 1

[Steve Jensen]

Originally posted by Thomas Paul:
random.nextInt(49) + 1

[Thomas Paul]

random.nextInt(49) generates a random integer from 0 to 48. Add 1 to the result and you get a range of 1 to 49.

[Steve Jensen]

Cheers!
I get it now

[Steve Jensen]

Originally posted by Thomas Paul:
random.nextInt(49) generates a random integer from 0 to 48. Add 1 to the result and you get a range of 1 to 49.

random.nextInt(49) + 1

Couldn't we just have said
random.nextInt(50)
to generate number between 1 and 49 inclusive.

[ February 14, 2003: Message edited by: Steve Jensen ]

[Marilyn de Queiroz]

random() always starts at zero so random.nextInt(50) would give you random numbers from 0 through 49 not from 1 through 49.

[Thomas Paul]

Notice that we are adding one to the result of the method not the parameter passed to the method.