class People {
private int age;
private String name;
People(int age,String name){
this.age=age;
this.name=name;
System.out.println(age);
System.out.println(name);
}
}
public class Demo {
public static void main(String[] args) {
People p = new People(18,"lishuai");
}
}
在創(chuàng)建對(duì)象時(shí)，會(huì)默認(rèn)一個(gè)空參構(gòu)造，構(gòu)造函數(shù)可以自己構(gòu)建，在創(chuàng)建對(duì)象時(shí)就可以自己賦值。
