JAVA面向对象 封装原理及实例解析

public class C {
  public static void main(String[] args){
    Clerk clerk1 = new Clerk("小花",22,4500.57f);
    System.out.println("名字是：" + clerk1.name + "\n年龄：" + clerk1.getAge() + "\n薪水：" + clerk1.getSalary());
  }
}

//职员
class Clerk{
  public String name;

  //用private封装起来变成私有的
  private int age;
  private float salary; //薪水

  public Clerk(String name, int age ,float salary)
  {
    this.name = name;
    this.age = age;
    this.salary = salary;
  }
  //通过一个成员方法去控制和访问私有的属性
  public int getAge()
  {
    return this.age;
  }
  public float getSalary()
  {
    return this.salary;
  }

}