public class person {
String name="li";
String sex="man";
public person(){
name="xiao";
sex="男";
System.out.println("执行构造方法");
}
public person(String name){
this.name=name;
}
public void print(){
System.out.println("我的昵称叫"+this.name+"我的性别是"+this.sex);
}
public static void main(String[] args) {
person person=null;
person=new person();
person.print();
person=new person("peng");
person.print();
}
}
原文:https://www.cnblogs.com/wgc1999/p/11637648.html