Generic type class conformity in Java
Forums:
class Vehicle {
public void test() {
//Implementation
}
}
class Car extends Vehicle { }
class Truck {}
class Service<T extends Vehicle> {
List<T> list = new ArrayList<T>();
public void add(T item) {
list.add(item);
}
public void test() {
for (T item : list) {
item.test();
}
}
}
Vehicle vehicle = new Vehicle();
Car car = new Car();
Truck truck = new Truck();
Service<Vehicle> service = new Service<>();
service.add(vehicle);
service.add(car);
service.test();
service.add(truck);//<- Error
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