Question

用java判断一个字符串是否为回文数，我的程序哪儿有问题？求解。。。

public class CountVowels {
public static void main (String[] args){
StringBuffer s1= new StringBuffer("non");
StringBuffer s2 = new StringBuffer(s1).reverse();

System.out.println("原来的数字："+s1);
System.out.println("改变以后的："+s2);
System.out.println(s2.toString().equals(s1));

if(s2.toString().equals(s1))
System.out.println("This Is A Palindrome");
else
System.out.println("This Is A Not Palindrome");

}

}

Answer 1

public static void main(String[] args) {
// TODO Auto-generated method stub
StringBuffer s1= new StringBuffer("non");
StringBuffer s2 = new StringBuffer(s1).reverse();
String str1 = new String(s1); //把得到的数据转换成String再比较
String str2 = new String(s2);
System.out.println("原来的数字："+str1);
System.out.println("改变以后的："+str2);

if(str1.equals(str2))
System.out.println("This Is A Palindrome");
else
System.out.println("This Is A Not Palindrome");

}

Answer 2

在软件论坛里面问问

Answer 3

s1.toString()就行了