DAY 9 - HOMEWORK - 과일판매량 (2024.07.15)

[문제]

과일 판매량 구하기

월별 매출합계도 구하시오

 

[클래스]

Fruit

[필드]

pum, jan, feb, mar, tot

sumJan, sumFeb, sumMar

[메소드]

생성자(품명, 1월, 2월, 3월)

calcTot()

display()

public static void output()

 

[클래스]

FruitMain

 

[실행결과]

---------------------------------------

PUM JAN FEB MAR TOT

---------------------------------------

사과 100 80 75 255

포도 30 25 10 xxx

딸기 25 30 90 xxx

---------------------------------------

xxx xxx xxx output()로 처리

package class__;

public class Fruit {
	private String pum;
	private int jan, feb, mar, tot;
	private static int sumJan, sumFeb, sumMar;
	
	public Fruit(String pum, int jan, int feb, int mar) {
		this.pum = pum;
		this.jan = jan;
		this.feb = feb;
		this.mar = mar;
		
		sumJan += this.jan;
		sumFeb += this.feb;
		sumMar += this.mar;
	}
	
	public void calcTot() {
		tot = jan + feb + mar;
	}
	
	public void display() {
		System.out.println(this.pum + "\t" 
						+ this.jan + "\t" 
						+ this.feb + "\t" 
						+ this.mar + "\t" 
						+ this.tot);
	}
	
	public static void output() {
		System.out.println("\t" + sumJan + "\t" + sumFeb + "\t" + sumMar);
	}
}

 

package class__;

public class FruitMain {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Fruit[] ar = new Fruit[3];
		
		ar[0] = new Fruit("사과", 100, 80, 75);
		ar[1] = new Fruit("포도", 30, 25, 10);
		ar[2] = new Fruit("딸기", 25, 30, 90);
		
		System.out.println("---------------------------------------");
		System.out.println("PUM\tJAN\tFEB\tMAR\tTOT");
		System.out.println("---------------------------------------");
		for(int i=0; i<ar.length; i++) {
			ar[i].calcTot();
			ar[i].display();
		}
		System.out.println("---------------------------------------");
		Fruit.output();
	}

}

 

---------------------------------------
PUM	JAN	FEB	MAR	TOT
---------------------------------------
사과	100	80	75	255
포도	30	25	10	65
딸기	25	30	90	145
---------------------------------------
	155	135	175