BookService

package  edu.kh.oop.practice.model.service;





 import edu.kh.oop.practice.model.vo.Book;

public class BookService {



public void practice() {
	
	
	Book b1 = new Book();
	Book b2 = new Book();
	
	
	b1.setTitle("c언어");
	b1.setPrice(30000);
	b1.setDiscountRate(0.1);
	b1.setAuthor("홍길동");
	
	
	System.out.println(b1.toString());
	System.out.println(b2.toString());
	
	
	b2.setTitle("자바의 정석");
	b2.setPrice(30000);
	b2.setDiscountRate(0.2);
	b2.setAuthor("남궁성");
	
	System.out.println("수정된 결과 확인");
	System.out.println(b1.toString());
	
	
	System.out.println("도서명 = " + b1.getTitle());
	System.out.printf("할인된 가격 = %.0f\n", (b1.getPrice() - (b1.getPrice() * b1.getDiscountRate())));
	System.out.println("도서명 = " + b2.getTitle());
	System.out.printf("할인된 가격 = %.0f\n", (b2.getPrice() - (b2.getPrice() * b2.getDiscountRate())));


  
	
	
	
	
	
	
}

}

Book

 package edu.kh.oop.practice.model.vo;

public class Book {



private String title ;
private int price ;
private double discountRate ;
private String author ;



public Book() {
	
	this. title = title;
	this.price = price;
	this. discountRate = discountRate;
	this. author = author;
	
	
	
	
	
	
}



public String getTitle() {
	return title;
}



public void setTitle(String title) {
	this.title = title;
}



public int getPrice() {
	return price;
}



public void setPrice(int price) {
	this.price = price;
}



public double getDiscountRate() {
	return discountRate;
}



public void setDiscountRate(double discountRate) {
	this.discountRate = discountRate;
}



public String getAuthor() {
	return author;
}



public void setAuthor(String author) {
	this.author = author;
}

}

PracticeRun

package edu.kh.oop.practice.run;

import edu.kh.oop.practice.model.service.BookService;

public class PraticeRun {



public static void main(String[] args) {
	
	BookService b1 = new BookService();
	
	
	
	b1.practice();	
		
	
	
	
	
}

}

Snack

  package com.kh.practice.snack.model.vo;

 public class Snack {


 public Snack() {}
	
	private String kind ;
	private String name ;
	private String flaver;
	private int numOf;
	private int price;
	
	
	public String getKind() {
		return kind;
	}
	public void setKind(String kind) {
		this.kind = kind;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getFlavor() {
		return flaver;
	}
	public void setFlaver(String flaver) {
		this.flaver = flaver;
	}
	public int getNumOf() {
		return numOf;
	}
	public void setNumOf(int numOf) {
		this.numOf = numOf;
	}
	public int getPrice() {
		return price;
	}
	public void setPrice(int price) {
		this.price = price;
	}
	public String information() {
		
		
		return getKind() + getName() + getFlavor() + getNumOf() + getPrice();
	}

SnackController

package com.kh.practice.snack.controller;

 import java.util.Scanner;

import com.kh.practice.snack.model.vo.Snack;

public class SnackController {
Scanner sc = new Scanner(System.in);

Snack s = new Snack();

public SnackController() {}

public String saveData(String kind, String name, String flavor, int numOf, int price) { 
	
	this.s.setKind(kind);
	this.s.setName(name);
	this.s.setFlaver(flavor);
	this.s.setNumOf(numOf);
	this.s.setPrice(price);
				
	return "저장되었습니다\n";
}

public String confirmData() {
	return s.getKind() + "(" + s.getName() + " - " + s.getFlavor() + ") " + s.getNumOf() +"개 "+ s.getPrice()+"원";
}
	
}

##SnackMenu

     package com.kh.practice.snack.view;

 import java.util.Scanner;

 import com.kh.practice.snack.controller.SnackController;

 public class SnackMenu {

public void menu() {
	

Scanner sc = new Scanner(System.in);
SnackController scr = new SnackController();

System.out.print("스낵류를 입력하세요");

System.out.println("종류 :");
String inputKind = sc.next();

System.out.println("이름 :");
String inputName = sc.next();

System.out.println("맛 :");
String inputFlavor = sc.next();

System.out.println("개수:");
String inputNumOf = sc.next();

System.out.println("가격 :");
String inputPrice = sc.next();


System.out.println(scr.saveData(inputKind, inputName, inputFlavor, inputNumOf, inputPrice));
char input1 = sc.next().charAt(0);

if(input1 == 'y') {
	System.out.println(scr.confirmData());
}


}
  } 
  
  

Run

        package com.kh.practice.snack.run;

   import com.kh.practice.snack.view.SnackMenu;

   public class Run {

   public static void main(String[] args) {
  SnackMenu snack = new SnackMenu();
	
	snack.menu();
}

}