Java (while문&Switch case문_예금, 출금, 잔고 확인)

while문과 Switch case문을 사용해서 예금, 출금, 잔고를 확인하는 코드

 

package p0409;
import java.util.Scanner;

public class Menubar2 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner scan = new Scanner(System.in);
		int ye=0, chu=0;
		int i;
		
		while(true) {
			System.out.println("\n---------------------------------");
			System.out.println(" 1.예금 ㅣ 2.출금 ㅣ 3.잔고 ㅣ 4.종료 ");
			System.out.println("---------------------------------");
			
			System.out.print("선택> ");
			i = scan.nextInt();
			switch(i) {
			case 1:
				System.out.print("예금> ");
				ye += scan.nextInt();
 				//System.out.println("현재잔액: " + ye);
				break;
			case 2:
				System.out.print("출금> ");
				ye -= scan.nextInt();
				//System.out.println("현재잔액: " + ye);
				break;
			case 3:
				System.out.print("잔고> " + ye);
				break;
			case 4:
				System.out.println("종료되었습니다.");
				System.exit(0);
				break;
			}
		} 

	}

}