望采纳。有以下几个问题:
修改后的代码如下:
class Animal {
private boolean sex;
private int age;
public Animal(boolean sex, int age) {
this.sex = false;
this.age = age;
}
public boolean getSex() {
return sex;
}
public void setSex(boolean sex) {
this.sex = sex;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public void Introduce() {
if (sex == false) {
System.out.println("This is a male Animal!");
} else {
System.out.println("This is a female Animal!");
}
}
}
class Dog extends Animal {
public Dog(boolean sex, int age) {
super(sex, age);
super.setSex(true);
}
public void Introduce() {
if (super.getSex() == true) {
System.out.println("This is a male Dog!");
} else {
System.out.println("This is a female Dog!");
}
}
}
public class AnimalTest {
public static void main(String[] args) {
Animal ani = new Animal(false, 10);
ani.Introduce();
Dog dog = new Dog(true, 5);
dog.Introduce();
}
}
代码用控件提交,不然你这谁也看不了