通过使用StringBuffer反转字符串

/*
N o w J a v a . c o m 提 供
*/

public class ReverseStringTest {

    public static void main(String[] args) {

        String str = "What's going on?";

        System.out.println(ReverseString.reverseIt(str));

    }

}

class ReverseString {

    public static String reverseIt(String source) {

        int i, len = source.length();

        StringBuffer dest = new StringBuffer(len);


        for (i = (len - 1); i >= 0; i--)

            dest.append(source.charAt(i));

        return dest.toString();/** from n o w j a v a . c o m - 时  代  Java**/

    }

}