作业帮判断是否为回文public class huiwen {\x05public static void main(String[]args){\x05\x05\x05String n;\x05\x05StringBuffer s=new StringBuffer(n);\x05\x05StringBuffer s1=s.reverse();\x05\x05String s2=s1.toString();\x05\x05if(n.equals(s2))\x05\x05\x
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/29 05:00:49
![判断是否为回文public class huiwen {\x05public static void main(String[]args){\x05\x05\x05String n;\x05\x05StringBuffer s=new StringBuffer(n);\x05\x05StringBuffer s1=s.reverse();\x05\x05String s2=s1.toString();\x05\x05if(n.equals(s2))\x05\x05\x](/uploads/image/z/804100-4-0.jpg?t=%E5%88%A4%E6%96%AD%E6%98%AF%E5%90%A6%E4%B8%BA%E5%9B%9E%E6%96%87public+class+huiwen+%7B%5Cx05public+static+void+main%28String%5B%5Dargs%29%7B%5Cx05%5Cx05%5Cx05String+n%3B%5Cx05%5Cx05StringBuffer+s%3Dnew+StringBuffer%28n%29%3B%5Cx05%5Cx05StringBuffer+s1%3Ds.reverse%28%29%3B%5Cx05%5Cx05String+s2%3Ds1.toString%28%29%3B%5Cx05%5Cx05if%28n.equals%28s2%29%29%5Cx05%5Cx05%5Cx)
判断是否为回文public class huiwen {\x05public static void main(String[]args){\x05\x05\x05String n;\x05\x05StringBuffer s=new StringBuffer(n);\x05\x05StringBuffer s1=s.reverse();\x05\x05String s2=s1.toString();\x05\x05if(n.equals(s2))\x05\x05\x
判断是否为回文
public class huiwen {
\x05public static void main(String[]args){\x05
\x05\x05String n;
\x05\x05StringBuffer s=new StringBuffer(n);
\x05\x05StringBuffer s1=s.reverse();
\x05\x05String s2=s1.toString();
\x05\x05if(n.equals(s2))
\x05\x05\x05System.out.println("是回文");
\x05\x05else
\x05\x05\x05System.out.println("不是回文");
}}
请指出错误,并点出原因
判断是否为回文public class huiwen {\x05public static void main(String[]args){\x05\x05\x05String n;\x05\x05StringBuffer s=new StringBuffer(n);\x05\x05StringBuffer s1=s.reverse();\x05\x05String s2=s1.toString();\x05\x05if(n.equals(s2))\x05\x05\x
字符串n没有初始化.