class Apple { public Apple() { System.out.println("APPLE"); } }class Person { public Person() { System.out.println("PERSON"); } public void eat(Apple apple) { System.out.println("EAT"); } }public class Test { public static void main(String[] args) { new Person().eat(new Apple()); } }看一下输出就明白了
System.out.println("APPLE");
}
}class Person { public Person() {
System.out.println("PERSON");
} public void eat(Apple apple) {
System.out.println("EAT");
}
}public class Test { public static void main(String[] args) {
new Person().eat(new Apple());
}
}看一下输出就明白了
在Person类,Apple类的无参构造函数中写log不就知道了?
我的测试结果是:
构造person -> 构造apple -> 吃;