比较字符串

package _4_9_test;

import java.util.Scanner;

/*比较字符串
 * 
 * */
public class EightyOne {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner scanner = new Scanner(System.in);
		String s1 = scanner.next();
		String s2 = scanner.next();

		char c1[] = s1.toCharArray();
		char c2[] = s2.toCharArray();

		boolean flag = true;
		int result = 0;
		for (int i = 0; i < Math.min(c1.length, c2.length); i++) {
			if (c1[i] != c2[i]) {
				flag = false;
				result = c1[i] - c2[i];
				System.out.println(result);
				break;
			}
		}
		
		if (flag) {
			System.out.println("0");
		}

	}

}