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클래스의 정의와 인스턴스 생성
//'main' method must be in a class 'Rextester'. //Compiler version 1.8.0_72 import java.util.*; import java.lang.*; class FruitSeller { int numOfApple; int myMoney; final int APPLE_PRICE; public FruitSeller(int money, int appleNum, int price) { myMoney=money; numOfApple=appleNum; APPLE_PRICE=price; } public int saleApple(int money) { int num=money/APPLE_PRICE; numOfApple-=num; myMoney+=money; return num; } public void showSaleResult() { System.out.println("남은 사과: " + numOfApple); System.out.println("판매 수익: " + myMoney); } } class FruitBuyer { int myMoney; int numOfApple; public FruitBuyer(int money) { myMoney=money; numOfApple=0; } public void buyApple(FruitSeller seller, int money) { numOfApple+=seller.saleApple(money); myMoney-=money; } public void showBuyResult() { System.out.println("현재 잔액: " + myMoney); System.out.println("사과 개수: " + numOfApple); } } class Rextester { public static void main(String[] args) { FruitSeller seller1 = new FruitSeller(0, 30, 1500); FruitSeller seller2 = new FruitSeller(0, 20, 1000); FruitBuyer buyer = new FruitBuyer(10000); buyer.buyApple(seller1, 4500); buyer.buyApple(seller2, 2000); System.out.println("과일 판매자1의 현재 상황"); seller1.showSaleResult(); System.out.println("과일 판매자2의 현재 상황"); seller2.showSaleResult(); System.out.println("과일 구매자의 현재 상황"); buyer.showBuyResult(); } }
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