While running Java programs getting "Exception in thread "main" java.lang.NoSuchMethodError"?

Question

While compiling its not showing any error. Program is :

public class Strn
{

public static void main(String s)
{
int i, len = s.length();
String results = "";
for (i = (len - 1); i >= 0; i--)
{

char w=s.charAt(i);
results = results + w ;
}

System.out.println(results);}

}

Answer 1

oh guys come on

check the argument with main method it should be
main(String s[]) or main(String[] s)

the reason why it compiles well because u are overriding the main function..

Answer 2

I did not read through all the code, so there could be more things wrong with this... but in java, length of an array is a public number and not a method.
So s.length() is wrong
It should be s.length

The java compiler is cribbing about the lenth() method not being available. I think thats a misconception people with prior exposure to C++ bring to java.

Answer 3

I am usually successful at Googleing the error. Sun has so many bugs in their Java platform it is unreal. I recently had to add registry entries to get some Java to work. Here is the link to what i googled this time. Maybe it will help.

Answer 4

check out the class name u r getting after compiling and also see that u r file name and the main prg must be same