Quick question on probabilty with java

[KWSW]

Just a quick question on generating probability with java,

lets say i got a probability of 0.2 or 20% before something happens.

can I write it out as

for(int i = 0; i < size; i++)
{   
   double e = Math.random();

   if(e > 0.20)
   {
      //do nothing
   }
   else
   {
      //do something
   }
}

[JosAH]

Just a quick question on generating probability with java,

lets say i got a probability of 0.2 or 20% before something happens.

can I write it out as

for(int i = 0; i < size; i++)
{   
   double e = Math.random();

   if(e > 0.20)
   {
      //do nothing
   }
   else
   {
      //do something
   }
}

Yep, that's fine. The Math.random() pseudo random number generator generates
uniformly distributed numbers in the interval [0,1). Also have a look at the
Random class; it can do a bit more; maybe you need it.

kind regards,

Jos