# java作業-15號
###### tags: `JAVA`
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No.4 增量(燒腦?)版
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追加功能:
1. 提供scanner使用
2. 判斷是否為主管(輸入y或n)，是才提供bonus作輸入
3. 檢查全輸入是否符合型態，不合則提供重新輸入

main()

package no4;
public class TestNo4 {
	public static void main(String[] args) {
		Employees emp = new Employees();
		emp.process();
	}
}

Employees class

package no4;
import java.util.InputMismatchException;
import java.util.Scanner;
public class Employees {
	
	private int empno;
	private String name;
	private long salary;
	
	public void process() {
		System.out.println("此員工是否為主管? (y/n)");
		while(true) {
			Scanner sca = new Scanner(System.in);
			String temp =sca.next();
			if(temp.equals("y")) {
				Employees manager = new Manager();
				manager.set();
				manager.desc();
				break;
			}else if(temp.equals("n")) {
				set();
				desc();
				break;
			}else {
				System.out.println("請重新輸入 (y/n)");
				continue;
			}
		}
	}
	
	public void set() {
		System.out.println("請輸入員工編號 : ");
		while(true) {
			try {
				Scanner sca = new Scanner(System.in);
				this.empno = sca.nextInt();
				if(this.empno <= 0) {
					System.out.println("員工編號不應小於或等於零，請重新輸入!");
					continue;
				}
				break;
			} catch (InputMismatchException e) {
				System.out.println("員工編號為整數數字，請重新輸入!");
			}
		}
		
		System.out.println("請輸入員工姓名 : ");
		Scanner sca = new Scanner(System.in);
		this.name = sca.nextLine();
		
		System.out.println("請輸入員工薪水 : ");
		while(true) {
			try {
				Scanner sca1 = new Scanner(System.in);
				this.salary = sca1.nextLong();
				if(this.salary < 0) {
					System.out.println("薪水為正整數，請重新輸入!");
					continue;
				}
				break;
			} catch (InputMismatchException e) {
				System.out.println("薪水為整數數字，請重新輸入!");
			}
		}
	}

	public void desc() {
		System.out.println();
		System.out.println("員工編號 : "+getEmpno());
		System.out.println("員工姓名 : "+getName());
		System.out.println("員工薪水 : "+getSalary()+" 元");
	}
	
	public int getEmpno() {
		return this.empno;
	}
	public String getName() {
		return this.name;
	}
	public long getSalary() {
		return this.salary;
	}
}

Manager class

package no4;
import java.util.InputMismatchException;
import java.util.Scanner;
public class Manager extends Employees{
	
	private long salary;
	private long bonus;

	public void set() {
		super.set();
		System.out.println("請輸入分紅 : ");
		while(true) {
			try {
				Scanner sca = new Scanner(System.in);
				this.bonus = sca.nextInt();
				if(this.bonus < 0) {
					System.out.println("分紅為正整數，請重新輸入!");
					continue;
				}
				break;
			} catch (InputMismatchException e) {
				System.out.println("分紅為整數數字，請重新輸入!");
			}
		}
	}
	
	public void desc() {
		super.desc();
		System.out.println("-------------------------");
		System.out.println("主管分紅 : "+getBonus()+" 元");
	}
	
	public long getSalary() {
		salary = super.getSalary() + bonus;
		return salary;
	}
	
	public long getBonus() {
		return bonus;
	}
}

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No.5
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只貼main()，其他class和題目一模一樣

package no5;
import java.util.ArrayList;
import java.util.List;
public class ShoppingCart {

	public static void main(String[] args) {

		List<Product> shoppingList = new ArrayList<Product>();
		
		Product product1 = new Notebook("Asus" , 30000);
		Product product2 = new Notebook("Acer" , 20000);
		Product product3 = new Food("cookie" , 200);
		shoppingList.add(product1);
		shoppingList.add(product2);
		shoppingList.add(product3);
		
		int sum = 0;
		for(Product product : shoppingList) {
			sum = sum + product.getprice();
		}
		System.out.println("購物車內總金額 : "+sum+" 元");
		
		int sum1 = 0;
		for(Product product : shoppingList) {
			if(product instanceof Notebook) {
				sum1 = sum1 + product.getprice();
			}
		}
		System.out.println("購物車內筆電總金額 : "+sum1+" 元");
	}
}

(不要問我剩兩題在哪。。。時間都花在第一題了XD)