java循环输入并计算输入的字符串个数，按q停止循环

package com.edu;

import java.util.Scanner;

public class Sum {
	public static void main(String[] args) {
		int count = 0;
		while (0<1) {
			Scanner s = new Scanner(System.in);
			System.out.println("请输入字符串：");
			String str = null;
			str = s.next();
			if (!"q".equals(str)) {
				count++;
			} else {
				break;
			}

		}
		System.out.println("共输入" + count + "行");
	}

}