Simple Fibonacci series program in core java

import java.io.*;
class base
{
public void fabo()
{
int a=0,b=1,c,n;
}
}
class der extends base
{
public void fabo()
{
int a=0,b=1,c;


System.out.print(a+b);

for(int i=3;i<=10;i++)
{
c=a+b;
a=b;
b=c;
System.out.print(c+ " ");
}
}
}
public class fab
{
public static void main(String[]args)
{
der z=new der();
z.fabo();
}

}