import java.util.*; | |
class A<T> { | |
protected T t; | |
protected List<T> list = new ArrayList<T>(); | |
} | |
public class B extends A<Object> { | |
void foo() { | |
if (t == null) return; | |
if (list == null) return; | |
System.out.println(t); | |
for (Object s : list) { | |
//do nothing | |
} | |
} | |
} |