//考查多态的笔试题目,多多学习:
public class InterviewTest1 {
public static void main(String[] args) {
Base1 base = new Sub1();
base.add(1, 2, 3);
Sub1 s = (Sub1)base;
s.add(1,2,3);
}//问题是输出结果各自是什么?为什么?
}
class Base1 {
public void add(int a, int... arr) {
System.out.println("base1");
}
}
class Sub1 extends Base1 {
public void add(int a, int[] arr) {
System.out.println("sub_1");
}
public void add(int a, int b, int c) {
System.out.println("sub_2");
}
}