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

38 lines
923 B
Java

//: generics/InheritBounds.java
// ©2015 MindView LLC: see Copyright.txt
class HoldItem<T> {
T item;
HoldItem(T item) { this.item = item; }
T getItem() { return item; }
}
class Colored2<T extends HasColor> extends HoldItem<T> {
Colored2(T item) { super(item); }
java.awt.Color color() { return item.getColor(); }
}
class ColoredDimension2<T extends Dimension & HasColor>
extends Colored2<T> {
ColoredDimension2(T item) { super(item); }
int getX() { return item.x; }
int getY() { return item.y; }
int getZ() { return item.z; }
}
class Solid2<T extends Dimension & HasColor & Weight>
extends ColoredDimension2<T> {
Solid2(T item) { super(item); }
int weight() { return item.weight(); }
}
public class InheritBounds {
public static void main(String[] args) {
Solid2<Bounded> solid2 =
new Solid2<>(new Bounded());
solid2.color();
solid2.getY();
solid2.weight();
}
} ///:~