构建者模式
类
package builder; public class People { public String getName() { return name; } private void setName(String name) { this.name = name; } public String getAge() { return age; } private void setAge(String age) { this.age = age; } public String getHometown() { return hometown; } private void setHometown(String hometown) { this.hometown = hometown; } private String name="1"; private String age="1"; private String hometown="1"; public static class Builder{ private String name="1"; private String age="1"; private String hometown="1"; public Builder setName(String name) { this.name = name; return this; } public Builder setAge(String age) { this.age = age; return this; } public Builder setHometown(String hometown) { this.hometown = hometown; return this; } private void construct(People people){ people.setAge(age); people.setHometown(hometown); people.setName(name); } public People create(){ People people=new People(); construct(people); return people; } } }
使用
public class Use { public static void main(String[] args) { People people=new People.Builder().setAge("3").create(); System.out.println(people.getAge()+"--"+people.getName()+"--"+people.getHometown()); } }