public static boolean isHW(String s) {
if(s == null) return false;
int i = 0, j = s.length()-1;
while(i<=j)
if(s.charAt(i++)!=s.charAt(j--))return false;
return true;
}
if(s == null) return false;
int i = 0, j = s.length()-1;
while(i<=j)
if(s.charAt(i++)!=s.charAt(j--))return false;
return true;
}
{
public static void main(String [] args)
{
System.out.println(isD("afbdfa"));
System.out.println(isD("afbfa"));
System.out.println(isD("affa"));
}
private static boolean isD(String s)
{
if(s.length()==1||s.length()==0)
return true;
else
{
if(s.charAt(0)==s.charAt(s.length()-1))
{
String t=s.substring(1,s.length()-1);
return isD(t);
}
else
return false;
}
}
}
public static void main(String[] args)
{
System.out.println(args[0]+" is reverse Stirng ? "+isReverse(args[0]));
}
public static boolean isReverse(String str)
{
if (str==null||str.trim().length()==0) return false;
str=str.trim();
return str.equals(reverse(str));
}
public static String reverse(String str)
{
if (str==null||str.trim().length()==0) return str;
StringBuffer result=new StringBuffer("");
for (int i=str.length()-1; i>=0; i--)
result.append(str.charAt(i));
return new String(result);
}
}
if(s == null) return false;
if(s.length()<2) return true;
return (s.charAt(0)==s.charAt(s.length()-1))&& isHW(s.substring(1,s.length()-1));
}