/*
Java 2, v5.0 (Tiger) New Features
by Herbert Schildt
ISBN: 0072258543
Publisher: McGraw-Hill/Osborne, 2004
*/
// Stats attempts (unsuccessfully) to create a generic class that can compute
// the average of an array of numbers of any given type.
// The class contains an error!
public class Stats {
T[] nums; // nums is an array of type T
// Pass the constructor a reference to
// an array of type T.
Stats(T[] o) {
nums = o;
}
// Return type double in all cases.
double average() {
double sum = 0.0;
for(int i=0; i < nums.length; i++)
sum += nums[i].doubleValue(); // Error!!!
return sum / nums.length;
}
}