class Product { 
 private String name; 
 private String type; 
 public void showProduct(){ 
  System.out.println("名称："+name); 
  System.out.println("型号："+type); 
 } 
 public void setName(String name) { 
  this.name = name; 
 } 
 public void setType(String type) { 
  this.type = type; 
 } 
} 
 abstract class Builder { 
 public abstract void setPart(String arg1, String arg2); 
 public abstract Product getProduct(); 
} 
class ConcreteBuilder extends Builder { 
 private Product product = new Product(); 
  
 public Product getProduct() { 
  return product; 
 } 
 public void setPart(String arg1, String arg2) { 
  product.setName(arg1); 
  product.setType(arg2); 
 } 
} 
 public class Director { 
 private Builder builder = new ConcreteBuilder(); 
 public Product getAProduct(){ 
  builder.setPart("宝马汽车","X7"); 
  return builder.getProduct(); 
 } 
 public Product getBProduct(){ 
  builder.setPart("奥迪汽车","Q5"); 
  return builder.getProduct(); 
 } 
} 
public class Client { 
 public static void main(String[] args){ 
  Director director = new Director(); 
  Product product1 = director.getAProduct(); 
  product1.showProduct(); 
 
  Product product2 = director.getBProduct(); 
  product2.showProduct(); 
 } 
}