第15周作业java

Cola公司的雇员分为以下若干类：(知识点：多态) [必做
题]
• 4.1 ColaEmployee ：这是所有员工总的父类，属性：员工的
姓名,员工的生日月份。方法：getSalary(int month) 根据参数
月份来确定工资，如果该月员工过生日，则公司会额外奖励
100 元。
• 4.2 SalariedEmployee ： ColaEmployee 的子类，拿固定工
资的员工。属性：月薪
课后作业
• 4.3 HourlyEmployee ：ColaEmployee 的子类，按小时拿工
资的员工，每月工作超出160 小时的部分按照1.5 倍工资发
放。属性：每小时的工资、每月工作的小时数
• 4.4 SalesEmployee ：ColaEmployee 的子类，销售人员，
工资由月销售额和提成率决定。属性：月销售额、提成率
• 4.5 定义一个类Company，在该类中写一个方法，调用该
方法可以打印出某月某个员工的工资数额，写一个测试类
TestCompany,在main方法，把若干各种类型的员工放在一
个ColaEmployee 数组里，并单元出数组中每个员工当月的
工资。
public class ColaEmployee {
	  protected String name;
	  protected int month;
	  
	public ColaEmployee() {
		super();
	}
	public double getSalary(int month) {
        return 0;

    }
	public ColaEmployee(String name, int month) {
		super();
		this.name = name;
		this.month = month;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getMonth() {
		return month;
	}

	public void setMonth(int month) {
		this.month = month;
	}
	  

}
public class SalariedEmployee extends ColaEmployee{
	 protected double yuexin;

	public SalariedEmployee() {
		super();
	}

	public SalariedEmployee(String name, int month, double yuexin) {
		super(name, month);
		this.yuexin = yuexin;
	}
	 public double getSalary(int month) {
         if (super.month == month) {
             return yuexin + 100;
         } else {
             return yuexin;
         }
     }
	 
}
public class HourlyEmployee extends ColaEmployee {
	protected int gongzi;
    protected int xiaoshi;
	public HourlyEmployee() {
		super();
	}
	public HourlyEmployee(String name, int month, int gongzi, int xiaoshi) {
		super(name, month);
		this.gongzi = gongzi;
		this.xiaoshi = xiaoshi;
	}
	 public double getSalary(int month) {
		 if (super.month == month) {
	            if (xiaoshi > 160) {
	                return gongzi * 160 + gongzi * (xiaoshi - 160) * 1.5 + 100;
	            } else {
	                return gongzi * xiaoshi + 100;
	            }
	        } else {
	            if (xiaoshi > 160) {
	                return gongzi * 160 + gongzi * (xiaoshi - 160) * 1.5;
	            } else {
	                return gongzi * xiaoshi;
	            }
	        }
		 
	 }
}
public class SalesEmployee extends ColaEmployee  {
	protected int yuexiao;
	protected double ticheng;
	public SalesEmployee() {
		super();
	}
	public SalesEmployee(String name, int month, int yuexiao, double ticheng) {
		super(name, month);
		this.yuexiao = yuexiao;
		this.ticheng = ticheng;
	}
	public double getSalary(int month) {
        if (super.month == month) {
            return yuexiao * ticheng + 100;
        } else {
            return yuexiao * ticheng;
        }
	}

}
public class Company {
	  public void getSalary(ColaEmployee a, int month){
		  System.out.println(a.name + "在" + month + "月的月薪为" + a.getSalary(month)
	                + "元");
	  }
}
public class TestCompany {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		  ColaEmployee a1[] = { new SalariedEmployee("停停", 10, 30000),
				  new HourlyEmployee("美美", 4, 240, 120),
	                new SalesEmployee("张三", 9, 350000, 3.0) };
	        for (int i = 0; i < a1.length; i++) {
	            new Company().getSalary(a1[i],8);
		  
				  
		  
		  }
	}

}

　　

 

 

 5、利用接口实现动态的创建对象[选做题]
• 5.1 创建4个类：
• 苹果
• 香蕉
• 葡萄
• 园丁
• 5.2 在三种水果的构造方法中打印一句话.
• 以苹果类为例
• class apple
• {
• public apple()
• {
• System.out.println(―创建了一个苹果类的对象‖);
}
• }
课后作业
• 类图如下：
• 5.3 要求从控制台输入一个字符串，根据字符串的
值来判断创建三种水果中哪个类的对象

　　

 

 

import java.util.Scanner;
public interface Fruit {
	

}
class Apple implements Fruit{
    public Apple(){
        System.out.println("创造了一个苹果类的对象");
    }
}
    class Banana implements Fruit{
        public Banana(){
            System.out.println("创造了一个香蕉类的对象");
        }
    }
        class Grape implements Fruit{
            public Grape(){
                System.out.println("创造了一个葡萄类的对象");
            }
        }
public class Gardener {
	 
	      public  Fruit create() {
	          Scanner input = new Scanner(System.in);
	          String name = input.next();

	         
	          Fruit f=null;
			if (name.equals("苹果")) {
	              f = new Apple();
	          }
	          if (name.equals("香蕉")) {
	              f = new Banana();
	          }
	          if (name.equals("葡萄")) {
	              f = new Grape();
	          }
	          return f;
	      }
	      public static void main(String[] args){
		        Gardener a=new Gardener();
		      a.create();
		 }

}