用jsp做的网站有哪些,表情制作小程序,图标设计网站,小程序开发哪家好又便宜建造者模式#xff08;Builder Pattern#xff09;#xff1a;将一个复杂对象的构建与它的表示分离#xff0c;使得同样的构建过程可以创建不同的表示。建造者模式是一种对象创建型模式。
建造者模式一步一步地创建一个复杂的对象#xff0c;它允许用户只通过指定复杂对象…建造者模式Builder Pattern将一个复杂对象的构建与它的表示分离使得同样的构建过程可以创建不同的表示。建造者模式是一种对象创建型模式。
建造者模式一步一步地创建一个复杂的对象它允许用户只通过指定复杂对象的类型和内容就可以构建它们用户不需要知道内部的具体构建细节。 // Product 类
public class Product {private String partA;private String partB;private String partC;public void setPartA(String partA) {this.partA partA;}public void setPartB(String partB) {this.partB partB;}public void setPartC(String partC) {this.partC partC;}public void showProduct() {System.out.println(Part A: partA);System.out.println(Part B: partB);System.out.println(Part C: partC);}
}// Builder 抽象接口
public interface Builder {void buildPartA();void buildPartB();void buildPartC();Product getProduct();
}// ConcreteBuilder1 类
public class ConcreteBuilder1 implements Builder {private Product product new Product();Overridepublic void buildPartA() {product.setPartA(This is part A.);}Overridepublic void buildPartB() {product.setPartB(This is part B.);}Overridepublic void buildPartC() {product.setPartC(This is part C.);}Overridepublic Product getProduct() {return product;}
}
// ConcreteBuilder2 类
public class ConcreteBuilder2 implements Builder {private Product product new Product();Overridepublic void buildPartA() {product.setPartA(This is part A.);}Overridepublic void buildPartB() {product.setPartB(This is part B.);}Overridepublic void buildPartC() {product.setPartC(This is part C.);}Overridepublic Product getProduct() {return product;}
}
// Director 类
public class Director {private Builder builder;public Director(Builder builder) {this.builder builder;}public void constructProduct() {builder.buildPartA();builder.buildPartB();builder.buildPartC();Product product builder.getProduct();product.showProduct();}
}
// 客户端代码
public class Client {public static void main(String[] args) {Builder builder1 new ConcreteBuilder1();Director director1 new Director(builder1);director1.constructProduct();Builder builder2 new ConcreteBuilder2();Director director2 new Director(builder2);director2.constructProduct();}
}
