public class Animal {
private String name;
protected String species;
protected int age;
public Animal(String name,int age){
this.name = name;
this.age = age;
}
public String showInfo(){
String msg = "打印對象詳細信息……";
return msg;
}
public void setSpecies(){
this.species = this.getClass().getSimpleName();
}
}
//Dog.java
public class Dog extends Animal {
private String name;
public Dog(String name,int age){
super(name,age);
}
public static void main(String[] args){
Dog d = new Dog("Tom",5);
System.out.println(d.showInfo());
}
//重寫方法
public String showInfo(){
String msg = "";
msg = "My name is " + name + ".\nI'm a " + species + ".\nI'm " + age + ".";
return msg;
}
}