Write a java program to generate fibonacci nos up to the nth value

Aim : Write a java program to generate fibonacci nos up to the nth value

//importing io classes
import java.io.*;



class  Fibonacci
{
public static void main(String[] args) throws IOException
{
DataInputStream in=new DataInputStream(System.in);
String s;
int a=1,b=1,c=a+b;
int n;

System.out.print("Enter nth value?");
s=in.readLine();
n=Integer.parseInt(s);
                System.out.print(a+","+b+",");
while(c<=n)
{
                        System.out.print(c+",");
a=b;
b=c;
c=a+b;
}
}
}