工厂类模式提供的是创建单个类的模式，而建造者模式则是将各种产品集中起来进行管理，用来创建复合对象，
所谓复合对象就是指某个类具有不同的属性，其实建造者模式就是前面抽象工厂模式和最后的 Test 结合起来得到的。
1. public class Builder {
2. private List<Sender> list = new ArrayList<Sender>();
3.
4. public void produceMailSender(int count) {
5. for (int i = 0; i < count; i++) {
6. list.add(new MailSender());
7. }
8. }
9.
10. public void produceSmsSender(int count) {
11. for (int i = 0; i < count; i++) {
12. list.add(new SmsSender());
13. }
14. }
15. }
1. public class Builder {
2. private List<Sender> list = new ArrayList<Sender>();
3.
4. public void produceMailSender(int count) {
5. for (int i = 0; i < count; i++) {
6. list.add(new MailSender());
7. }
8. }
9.
10. public void produceSmsSender(int count) {
11. for (int i = 0; i < count; i++) {
12. list.add(new SmsSender());
13. }
14. }
15. }
1. public class TestBuilder {
2. public static void main(String[] args) {
3. Builder builder = new Builder();
4. builder.produceMailSender(10);
5. }
6. } |
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