[Java] 실습과제3_OOP

실습문제 1

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

public class Book {
	
	private String title;
	private int price;
	private double discountRate;
	private String author;
	
	public Book() {}
	
	public Book(String title, int price, double discountRate, String author) {
		this.title = title;
		this.price = price;
		this.discountRate = discountRate;
		this.author = author;
	}
	
	public String toString() {
		String str = getTitle() + " / " + getPrice() + " / " +
	                 getDiscountRate() + " / " + getAuthor();
		return str;
	}
	
	public void setTitle(String title) {
		this.title = title;
	}
	
	public String getTitle() {
		return title;
	}
	
	public void setPrice(int price) {
		this.price = price;
	}
	
	public int getPrice() {
		return price;
	}
	
	public void setDiscountRate(double discountRate) {
		this.discountRate = discountRate;
	}
	
	public double getDiscountRate() {
		return discountRate;
	}
	
	public void setAuthor(String author) {
		this.author = author;
	}
	
	public String getAuthor() {
		return author;
	}

}

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

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

public class BookService {
	
	public void practice() {
		
		Book book1 = new Book();
		Book book2 = new Book("자바의 정석", 30000, 0.2, "남궁성");
		
		System.out.println(book1.toString());
		System.out.println(book2.toString());
		
		System.out.println("============================");
		
		System.out.println("수정된 결과 확인");
		book1.setTitle("C언어");
		book1.setPrice(30000);
		book1.setDiscountRate(0.1);
		book1.setAuthor("홍길동");
		
		System.out.println(book1.toString());
		
		System.out.println("============================");
		
		int discountPrice1 = (int)(book1.getPrice() - (book1.getPrice() * book1.getDiscountRate()));
		int discountPrice2 = (int)(book2.getPrice() - (book2.getPrice() * book2.getDiscountRate()));
		
		System.out.printf("도서명 = %s\n", book1.getTitle());
		System.out.printf("할인된 가격 = %d원\n", discountPrice1);
		System.out.printf("도서명 = %s\n", book2.getTitle());
		System.out.printf("할인된 가격 = %d원\n", discountPrice2);
	}

}

package edu.kh.oop.practice.run;

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

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

}

실습문제 2

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

public class Snack {
	
	private String kind;
	private String name;
	private String flavor;
	private int numOf;
	private int price;
	
	public Snack() {}
	
	public Snack(String kind, String name, String flavor, int numOf, int price) {
		this.kind = kind;
		this.name = name;
		this.flavor= flavor;
		this.numOf = numOf;
		this.price = price;
	}
	
	public String informaiton() {
		return kind + "(" + name + " - " + flavor + ") " + numOf + "개 " + price + "원";
	}
	
	public void setKind(String kind) {
		this.kind = kind;
	}
	
	public String getKind() {
		return kind;
	}
	
	public void setName(String name) {
		this.name = name;
	}
	
	public String getName() {
		return name;
	}
	
	public void setFlavor(String flavor) {
		this.flavor = flavor;
	}
	
	public String getFlavor() {
		return flavor;
	}
	
	public void setNumOf(int numOf) {
		this.numOf = numOf;
	}
	
	public int getNumOf() {
		return numOf;
	}
	
	public void setPrice(int price) {
		this.price = price;
	}
	
	public int getPrice() {
		return price;
	}
}

package com.kh.practice.snack.controller;

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

public class SnackController {
	
	Snack s = new Snack();
	
	public SnackController() {}
	
	public String saveData(String kind, String name, String flavor, int numOf, int price) {
		
		s.setKind(kind);
		s.setName(name);
		s.setFlavor(flavor);
		s.setNumOf(numOf);
		s.setPrice(price);
		
		return "저장 완료되었습니다.";
	}
	
	public String confirmData() {
		
		return s.informaiton();
	}

}

package com.kh.practice.snack.view;

import java.util.Scanner;

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

public class SnackMenu {
	
	Scanner sc = new Scanner(System.in);
	
	SnackController scr = new SnackController();
	
	public void menu() {
		
		System.out.println("스낵류를 입력하세요.");
		
		System.out.print("종류 : ");
		String kind = sc.next();
		
		System.out.print("이름 : ");
		String name = sc.next();
		
		System.out.print("맛 : ");
		String flavor = sc.next();
		
		System.out.print("개수 : ");
		int numOf = sc.nextInt();
		
		System.out.print("가격 : ");
		int price = sc.nextInt();
		
		System.out.println(scr.saveData(kind, name, flavor, numOf, price));
		
		System.out.print("저장한 정보를 확인하시겠습니까?(y/n) : ");
		String choice = sc.next();
		
		if(choice.equals("y")) {
			System.out.println(scr.confirmData());
		}
	}
}

package com.kh.practice.snack.run;

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

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

}