OnJava8-Examples/typeinfo/toys/GenericToyTest.java
Bruce Eckel 49edcc8b17 reorg
2015-06-15 17:47:35 -07:00

18 lines
567 B
Java

//: typeinfo/toys/GenericToyTest.java
// ©2015 MindView LLC: see Copyright.txt
// Testing class Class.
package typeinfo.toys;
public class GenericToyTest {
public static void main(String[] args) throws Exception {
Class<FancyToy> ftClass = FancyToy.class;
// Produces exact type:
FancyToy fancyToy = ftClass.newInstance();
Class<? super FancyToy> up = ftClass.getSuperclass();
// This won't compile:
// Class<Toy> up2 = ftClass.getSuperclass();
// Only produces Object:
Object obj = up.newInstance();
}
} /* Output: (None) *///:~