public
class person
public
void
setname(string name)
public
intgetage()
public
void
setage(int age)
public
double
getheight()
public
void
setheight(double height)
public
double
getweight()
public
void
setweight(double weight)
}
public
person(string name, int age, double height, double weight)
public
person()
public
person(string name)
public
person(string name, int age)
public
person(string name, int age, double height)
person p1=new person();
person p2=new person("張三");
person p3=new person("李四",18);
person p4=new person("王五",21,180);
person p5=new person("趙六",17,170,65.4);
public
class person
public string getname()
public
void
setname(string name)
public
intgetage()
public
void
setage(int age)
public
double
getheight()
public
void
setheight(double height)
public
double
getweight()
public
void
setweight(double weight)
static class builder
public builder age(int age)
public builder height(double height)
public builder weight(double weight)
public person build()
}}
person.builder builder=new person.builder();
person person=builder
.name("張三")
.age(18)
.height(178.5)
.weight(67.4)
.build();
alertdialog.builder builder=new alertdialog.builder(this);
alertdialog dialog=builder.settitle("標題")
.seticon(android.r
.drawable
.ic_dialog_alert)
.setview(r.layout
.myview)
.setpositivebutton(r.string
.positive, new dialoginte***ce.onclicklistener()
}).setnegativebutton(r.string
.negative, new dialoginte***ce.onclicklistener()
}).create();
dialog.show();
gsonbuilder builder=new gsonbuilder();
gson gson=builder.setprettyprinting()
.disablehtmlescaping()
.generatenonexecutablejson()
.serializenulls()
.create();
public
static eventbusbuilder builder()
public
eventbus()
eventbus(eventbusbuilder builder)
request.builder builder=new request.builder();
request request=builder.addheader("","")
.url("")
.post(body)
.build();
private response(builder builder)
builder類通過一系列的方法用於成員變數的賦值,並返回當前物件本身(this)
builder類提供乙個build方法或者create方法用於建立對應的外部類,該方法內部呼叫了外部類的乙個私有建構函式,該建構函式的引數就是內部類builder
外部類提供乙個私有建構函式供內部類呼叫,在該建構函式中完成成員變數的賦值,取值為builder物件中對應的值
設計模式 Builder模式
bulder模式是一步步建立乙個複雜物件的建立模型,它允許使用者在不知道內部構建細節 的情況下可以更精細地控制物件的構造流程該模式為將構建複雜物件的過程和它的部件 解耦,使得構建過程和部件的表示隔離開來。將乙個負責物件的構建與它的表示分離,使得同樣的構建過程可以建立不同的表示 3.1 相同的方法,不...
設計模式 Builder模式
網路上有人將它定義為 將乙個複雜物件的構建與它的表示分離,使得同樣的構建過程可以建立不同的物件。所以建造者模式適合於乙個具有較多的零件 屬性 的產品 物件 的建立過程。由五個部分構成 1.product concreatebuilder建立該產品的內部表示並定義它的裝配過程。2.builder介面 ...
設計模式 Builder模式
一貫風格,直接上 package created by mingchenchen on 2017 6 14.public class user public void setid string id public string getcountry public void setcountry st...