public class Construct {
public static void main(String[] args) {
new Derived();
}
}
class Base {
private int i = 2;
public Base() {
this.display();
}
public void display() {
System.out.println(i);
}
}
class Derived extends Base {
private int i = 22;
Derived() {
i = 222;
System.out.println("a");
}
public void display() {
System.out.println(i);
}
}
结果
0
a