为什么这个泛型不成功?
下面这个程序编译不通过。
class A<T> {
public A(T first, T second) {
this.first = first;
this.second = second;
}
public T getFirst() {
return first;
}
public T getSecond() {
return second;
}
public void setFirst(T newValue) {
first = newValue;
}
public void setSecond(T newValue) {
second = newValue;
}
private T first;
private T second;
}