Win a copy of Functional Reactive Programming this week in the Other Languages forum!

# Marcus Green Tutorial

Mahesh Bansal
Ranch Hand
Posts: 82
Which of the following will output a random with values only from 1 to 10 ?
1) System.out.println(Math.round(Math.random()*10));
2) System.out.println(Math.round(Math.random()%10));
3) System.out.println(Math.random()*10);
4) None of the above
The answer given is 4 can anyone please explain and what does random number means between 0.0 to 1.0 or beyond also.
Thanks

Mahesh

Tualha Khan
Ranch Hand
Posts: 287
As far as I know, random is a method in java.lang.Math clas which generates a random number between 0.0 and 1.0 and returns it as a double value. And in plain english, it picks a number from 0.0 to 1.0 randomly.(which ever it feels like).
Bye,
Tualha Khan

natarajan meghanathan
Ranch Hand
Posts: 130
yes. it can pick up any value from 0.0 to 1.0. when it does so, it can pick values < .1
applying this logic, u can come up withanswer for the above post as option 4.

Shrini Kulkarni
Ranch Hand
Posts: 63
what is the way to generate random numbers between 1 and 10 ?
Bye
Shrinivas