public class Employee{
private String name;
public Employee(String name){
this.name = name; }
public void display(){
System.out.print(name); } }
public class Manager extends Employee{
private String department;
public Manager(String name,String department){
super(name);
this.department = department;
}
public void display(){
System.out.println(super.display()+”,”+department); } }
執(zhí)行語(yǔ)句new Manager(“smith”,”SALES”)后程序的輸出是哪項(xiàng)?()
A. smith,SALES
B. null,SALES
C. smith,null
D. null,null
E. 編譯錯(cuò)誤