package com.lujiatao;
public class Person {
private String idCard;
private String name;
private boolean male;
private String nation;
public static class PersonBuilder {
private String idCard;
private String name = "匿名";
private boolean male = true;
private String nation = "汉";
public PersonBuilder(String idCard) {
this.idCard = idCard;
}
public PersonBuilder name(String name) {
this.name = name;
return this;
}
public PersonBuilder male(boolean male) {
this.male = male;
return this;
}
public PersonBuilder nation(String nation) {
this.nation = nation;
return this;
}
public Person build() {
return new Person(this);
}
}
private Person(PersonBuilder personBuilder) {
idCard = personBuilder.idCard;
name = personBuilder.name;
male = personBuilder.male;
nation = personBuilder.nation;
}
@Override
public String toString() {
return "Person{" +
"idCard='" + idCard + '\'' +
", name='" + name + '\'' +
", male=" + male +
", nation='" + nation + '\'' +
'}';
}
}
使用Builder代替多个重载的构造方法
©著作权归作者所有,转载或内容合作请联系作者
- 文/潘晓璐 我一进店门,熙熙楼的掌柜王于贵愁眉苦脸地迎上来,“玉大人,你说我怎么就摊上这事。” “怎么了?”我有些...
- 文/花漫 我一把揭开白布。 她就那样静静地躺着,像睡着了一般。 火红的嫁衣衬着肌肤如雪。 梳的纹丝不乱的头发上,一...
- 文/苍兰香墨 我猛地睁开眼,长吁一口气:“原来是场噩梦啊……” “哼!你这毒妇竟也来了?” 一声冷哼从身侧响起,我...
推荐阅读更多精彩内容
- 如何应对大量参数的构造器? 在开发过程中,经常会有很多数量的参数传进类的构造器,有一种很简单的做法是把这些参数都放...