public class Human {
public String name;
public int age;
// 无参构造
public Human() {
super();
}
// 带参构造
public Human(String name, int age) {
super();
this.name = name;
this.age = age;
}
public void walk() {
System.out.println(name + "正在行走");
}
}
===============上面是Human类===============
public class Child extends Human {
private String schoolName;
// 有参构造
public Child(String name, int age, String schoolName) {
super(name, age);// 用父类的构造方法
this.schoolName = schoolName;
}
public void study() {
System.out.println(super.name + "在" + schoolName + "认真地学习");
}
@Override
public void walk() {
super.walk();
}
}
===============上面是Child类===============
public class Demo {
public static void main(String[] args) throws Exception {
Child child = new Child("小明", 9, "希望小学");
child.study();
child.walk();
}
}
===============上面是Demo类===============
Demo类执行情况
===============上面是Demo类的执行情况===============
