class Animal {
private String name;
Animal(String name) {this.name = name;}
public void eng() {
System.out.println("叫声........");
}
}
class Cat extends Animal {
private String eyescolor;
Cat(String name,String eyescolor) {super(name); this.eyescolor = eyescolor;}
public void eng() {
System.out.println("猫的叫声......");
}
}
class Lady {
private String name;
private Animal animal;
public void lady(String name, Animal animal) {
this.name = name; this.animal = animal;
}
public void MyEng() {animal.eng();}
}
public class TestEng {
public static void main(String[] agrs) {
Cat c = new Cat("cat", "bule"); Lady l1 = new Lady("mimi",c);
l1.MyEng();}
}
private String name;
Animal(String name) {this.name = name;}
public void eng() {
System.out.println("叫声........");
}
}
class Cat extends Animal {
private String eyescolor;
Cat(String name,String eyescolor) {super(name); this.eyescolor = eyescolor;}
public void eng() {
System.out.println("猫的叫声......");
}
}
class Lady {
private String name;
private Animal animal;
public void lady(String name, Animal animal) {
this.name = name; this.animal = animal;
}
public void MyEng() {animal.eng();}
}
public class TestEng {
public static void main(String[] agrs) {
Cat c = new Cat("cat", "bule"); Lady l1 = new Lady("mimi",c);
l1.MyEng();}
}
this.name = name; this.animal = animal;
}
这个不是lady的构造方法 这就是一个普通方法,应该去掉void 构造方法没有返回值