Java及Android中常用链式调用写法简单示例

/**
 * 
 * 链式调用
 * 
 * @author k.k
 *
 */
public class Student {
 public Student() {
 }
 public static Builder builder() {
  return new Builder();
 }
 // 静态内部类
 static class Builder {
  /* 姓名 */
  private String name;
  /* 年龄 */
  private String age;
  /* 年级 */
  private String grade;
  /* 学号 */
  private String no;
  /* 专业 */
  private String Professional;
  public String getName() {
   return name;
  }
  public Builder setName(String name) {
   this.name = name;
   return this;
  }
  public String getAge() {
   return age;
  }
  public Builder setAge(String age) {
   this.age = age;
   return this;
  }
  public String getGrade() {
   return grade;
  }
  public Builder setGrade(String grade) {
   this.grade = grade;
   return this;
  }
  public String getNo() {
   return no;
  }
  public Builder setNo(String no) {
   this.no = no;
   return this;
  }
  public String getProfessional() {
   return Professional;
  }
  public Builder setProfessional(String professional) {
   Professional = professional;
   return this;
  }
  public void showMessagwe() {
   System.out.println("姓名：" + this.name);
   System.out.println("年龄：" + this.age);
   System.out.println("班级：" + this.grade);
   System.out.println("学号：" + this.no);
   System.out.println("专业：" + this.Professional);
  }
 }
 public static void main(String[] args) {
  // 链式调用（代码简洁，可读性强）
  Student.builder().setName("总有刁民想害朕").setAge("23").setGrade("大三")
    .setNo("20110310").setProfessional("信息管理与信息系统").showMessagwe();
 }
}