新人,关于StringBuilder的equals方法,求大神指点一下
小谢哥 2012-04-13 02:03:51 import java.io.*;
public class TestStringBuffer01
{
public static void main(String args[])throws IOException
{
BufferedReader buf;
String s1;
buf =new BufferedReader(new InputStreamReader(System.in));
System.out.print("请输入字符串:");
s1=buf.readLine();
StringBuffer sb1=new StringBuffer(s1);
StringBuffer sb2=sb1.reverse();
//System.out.println(sb1);
//System.out.println(sb2);
System.out.print("s1是否为回文:"+s1.equals(sb2.toString()));//这里的比较,sb2为什么要加toString啊?因为它是StringBuilder类型吗?
}
}
不是很懂哎!!!求指点......