结合别人的做出java的买衣服的程序

package if语句;


import java.util.Scanner;


public class 买衣服 {


public static void main(String[] args) {
// TODO Auto-generated method stub
String answer = "";
int sum = 0;
for (int i = 0; i < 5; i++) {
System.out.println("欢迎光临第" + (i + 1) + "家专卖店");
for (int j = 0; j >= 0; j++) {
System.out.println("请问要离开吗?(是/不)");
Scanner input = new Scanner(System.in);
answer = input.next();
if (answer.equals("是")) {
System.out.println("离开结账");
break;
} else if (answer.equals("不")) {
sum++;
System.out.println("买了一件衣服");
}
}
}
System.out.println("买了" + sum + "件衣服");
}


}