OnJava8-Examples/generics/ArrayOfGeneric.java
2015-05-29 14:18:51 -07:00

22 lines
699 B
Java

//: generics/ArrayOfGeneric.java
// ©2015 MindView LLC: see Copyright.txt
public class ArrayOfGeneric {
static final int SIZE = 100;
static Generic<Integer>[] gia;
@SuppressWarnings("unchecked")
public static void main(String[] args) {
// Compiles; produces ClassCastException:
//! gia = (Generic<Integer>[])new Object[SIZE];
// Runtime type is the raw (erased) type:
gia = (Generic<Integer>[])new Generic[SIZE];
System.out.println(gia.getClass().getSimpleName());
gia[0] = new Generic<>();
//! gia[1] = new Object(); // Compile-time error
// Discovers type mismatch at compile time:
//! gia[2] = new Generic<Double>();
}
} /* Output:
Generic[]
*///:~