Consider this code:
考虑以下代码:
public class DummyClass {
public List<? extends Number> dummyMethod() {
return new ArrayList<Integer>();
}
}
public class DuConsider this code:
考虑以下代码:
public class DummyClass {
public List<? extends Number> dummyMethod() {
return new ArrayList<Integer>();
}
}
public class Du