Program to implement Fibonacci series in Java

class P1
{
public static void main(String args[])
{
int x , y , z = 0 ;
System.out.println("The Fibonacci Series :\n");
System.out.println("====================\n");
System.out.println("0\n1");


for (x=0,y=1 ; y<1000 ; x=z)
{
z = y ;
y = x + y ;
System.out.println(y);
}
}
}