public class Demo05 {
public static void main(String[] args) {
new Child_3().sayHello();
}
}
class Parent_3 {
public void sayHello() {
System.out.println("Parent_3 say");
}
}
class Child_3 extends Parent_3 {
public void sayHello() {
System.out.println("Child_3 say");
}
}
输出结果
改成
class Child_3 extends Parent_3 { public void sayHello() { super.sayHello(); System.out.println("Child_3 say"); } }
输出结果是
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