The Random Class

The Random class creates an object that outputs random integers. For example:

Random randNum = new Random();  // create a Random number object

. . .

int someInt = Math.abs( randNum.nextInt() )%200   // someInt gets 
                                                  // a number from 0 to 199

The object referred to by randNum has a method nextInt() that will return an int randomly selected from the entire range of ints, negative and positive. Math.abs() can be used to make the returned int postive. Doing remainder division by 200 on that gives us an int 0 ... 199.