对已有字符串进行反转操作

//对已有字符串进行反转操作
public class Test7 {
	public static void main(String[] args) {
		String ss="asfsavfdhhgff";
		StringBuilder sb=new StringBuilder();
		for (int i = ss.length()-1; i>=0; i--) {
			sb.append(ss.charAt(i));
		}
		System.out.println(sb);
	}
}