使用this调用成员变量和构造函数
public class Person { String name; int age; String address; Person() { System.out.println("Person 无参构造"); } Person(String name, int age) { this.name = name; this.age = age; System.out.println("Person 二参构造"); } Person(String name, int age, String address) { this(name, age); this.address = address; System.out.println("Person 三参构造"); } }
public class Test { public static void main(String[] args) { // TODO Auto-generated method stub Person person = new Person("furong", 12, "BeiJing"); System.out.println(person.name); System.out.println(person.age); System.out.println(person.address); } }
运行结果
Person 二参构造 Person 三参构造 furong 12 BeiJing