JAVA ARS 모금 구현

package kr.ac.kr.MP01;

public class ARSMain {
	public static void main(String[] args) {
		
		arsVw vw = new arsVw();
		try {
			vw.start();
		} catch (InterruptedException e) {
			e.printStackTrace();
		}
		
		
		
	}
}



//==================================================================
package kr.ac.kr.MP01;

import java.util.Scanner;

public class arsVw {
	
	private Scanner sc = new Scanner(System.in);
	public Call c1 = new Call("1번 콜");
	public Call c2 = new Call("2번 콜");
	public Call c3 = new Call("3번 콜");
	SumThread s1 = new SumThread(); 

	
	void start() throws InterruptedException{
		while(true){
			
			System.out.println("성금 모금을 시작합니다.. ");
			System.out.printf("%s \n%s \n%s", "1. 모금시작", "2. 현재모금현황",  "3. 종료 \n");
			int choose = Integer.parseInt(sc.nextLine());			
			
			switch(choose){
				case 1 :
					(c1 = new Call("1번")).start();
					(c2 = new Call("2번")).start();
					(c3 = new Call("3번")).start();
					
					Thread.sleep(2000);
					
					s1.getSum(c1.getMoney(), c1.getName());
					s1.getSum(c2.getMoney(), c2.getName());
					s1.getSum(c3.getMoney(), c3.getName());
					
					Thread.sleep(2000);
					break;
					
				case 2 :
					System.out.println("현재 모금 현황입니다.");
					s1.gettSum();
					break;
				case 3 :
					System.exit(0);
					break;
					
				default :
					System.out.println("잘못 입력 하셨습니다.");
			}
			
			
			
		}
	}
	
	
}

//==================================================================
package kr.ac.kr.MP01;

import java.util.Random;

public class Call extends Thread {
	private Random r = new Random();
	private int sM;
	public boolean flag = false;

	Call(String name) {
		super(name);
	}

	@Override
	public void run() {
		
		for (int i = 0; i < 10; i++) {
			int money = r.nextInt(100)+1;
			System.out.println(super.getName() + "에서 " + money + " 원을 모금하였습니다.");
			setMoney(money);
		}
	}
	public void setMoney(int m){
		sM += m;
	}
	public int getMoney(){
		return sM; 
	}
}

//==================================================================
package kr.ac.kr.MP01;

public class SumThread{
	int tSum;
	
	
	public void getSum(int sum, String n){
		tSum += sum;
		System.out.println("===============================");
		System.out.println(n+"에서  총 "+sum+" 원이 모금되었습니다.");
		System.out.println("===============================");
		
	}
	public void gettSum(){
		System.out.println("===============================");
		System.out.println("총 "+ tSum+ "원이 모금되었습니다. 감사합니다.");
		System.out.println("===============================");
	}
}

//==================================================================